function stripslashes( str ) {
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Ates Goral (http://magnetiq.com)
    // +      fixed by: Mick@el
    // +   improved by: marrtins
    // +   bugfixed by: Onno Marsman
    // +   improved by: rezna
    // +   input by: Rick Waldron
    // +   reimplemented by: Brett Zamir (http://brett-zamir.me)
    // *     example 1: stripslashes('Kevin\'s code');
    // *     returns 1: "Kevin's code"
    // *     example 2: stripslashes('Kevin\\\'s code');
    // *     returns 2: "Kevin\'s code"
    return (str+'').replace(/\\(.?)/g, function (s, n1) {
        switch(n1) {
            case '\\':
                return '\\';
            case '0':
                return '\0';
            case '':
                return '';
            default:
                return n1;
        }
    });
}

function urlencode( str ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Philip Peterson
                             
    var histogram = {}, unicodeStr='', hexEscStr='';
    var ret = (str+'').toString();
    
    var replacer = function(search, replace, str) {
        var tmp_arr = [];
        tmp_arr = str.split(search);
        return tmp_arr.join(replace);
    };
    
    // The histogram is identical to the one in urldecode.
    histogram["'"]   = '%27';
    histogram['(']   = '%28';
    histogram[')']   = '%29';
    histogram['*']   = '%2A';
    histogram['~']   = '%7E';
    histogram['!']   = '%21';
    histogram['%20'] = '+';
    histogram['\u00DC'] = '%DC';
    histogram['\u00FC'] = '%FC';
    histogram['\u00C4'] = '%D4';
    histogram['\u00E4'] = '%E4';
    histogram['\u00D6'] = '%D6';
    histogram['\u00F6'] = '%F6';
    histogram['\u00DF'] = '%DF';
    histogram['\u20AC'] = '%80';
    histogram['\u0081'] = '%81';
    histogram['\u201A'] = '%82';
    histogram['\u0192'] = '%83';
    histogram['\u201E'] = '%84';
    histogram['\u2026'] = '%85';
    histogram['\u2020'] = '%86';
    histogram['\u2021'] = '%87';
    histogram['\u02C6'] = '%88';
    histogram['\u2030'] = '%89';
    histogram['\u0160'] = '%8A';
    histogram['\u2039'] = '%8B';
    histogram['\u0152'] = '%8C';
    histogram['\u008D'] = '%8D';
    histogram['\u017D'] = '%8E';
    histogram['\u008F'] = '%8F';
    histogram['\u0090'] = '%90';
    histogram['\u2018'] = '%91';
    histogram['\u2019'] = '%92';
    histogram['\u201C'] = '%93';
    histogram['\u201D'] = '%94';
    histogram['\u2022'] = '%95';
    histogram['\u2013'] = '%96';
    histogram['\u2014'] = '%97';
    histogram['\u02DC'] = '%98';
    histogram['\u2122'] = '%99';
    histogram['\u0161'] = '%9A';
    histogram['\u203A'] = '%9B';
    histogram['\u0153'] = '%9C';
    histogram['\u009D'] = '%9D';
    histogram['\u017E'] = '%9E';
    histogram['\u0178'] = '%9F';
    
    // Begin with encodeURIComponent, which most resembles PHP's encoding functions
    ret = encodeURIComponent(ret);
 
    for (unicodeStr in histogram) {
        hexEscStr = histogram[unicodeStr];
        ret = replacer(unicodeStr, hexEscStr, ret); // Custom replace. No regexing
    }
    
    // Uppercase for full PHP compatibility
    return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
        return "%"+m2.toUpperCase();
    });
}

function is_numeric( mixed_var ) {
    // http://kevin.vanzonneveld.net
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
 
    if (mixed_var === '') {
        return false;
    }
 
    return !isNaN(mixed_var * 1);
}

function buildAjaxObject() {
	try {
		var ro = new XMLHttpRequest();
	}
	catch (e) {
		var ro = new ActiveXObject("Microsoft.XMLHTTP");
	}
	
	return ro;
}

//Feather Ajax v1.0.1 by Sean Kane (http://celtickane.com/programming/code/ajax.php)
function ajaxObject() {

	this.sndReq = function(action, url, data) {
		if (action.toUpperCase() == "POST") {
			this.http.open(action,url,true);
			this.http.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
			this.http.onreadystatechange = this.handleResponse;
			this.http.send(data);
		}
		else {
			this.http.open(action,url + '?' + data,true);
			this.http.onreadystatechange = this.handleResponse;
			this.http.send(null);
		}
	}
	this.handleResponse = function() {
		if (me.http.readyState == 4) {
			var rawdata = me.http.responseText.split("|");
			for ( var i = 0; i < rawdata.length; i++ ) {
				var item = (rawdata[i]).split("=>");
				if (item[0] != "") {
					if (item[1].substr(0,3) == "%V%" ) {
						document.getElementById(item[0]).value = item[1].substring(3);
					}
					else {
						document.getElementById(item[0]).innerHTML = item[1];
					}
				}
			}
		}
	}
	var me = this;
	this.http = buildAjaxObject();
}

function textCounter(field,cntfield,maxlimit) {
if (field.value.length > maxlimit) // if too long...trim it!
field.value = field.value.substring(0, maxlimit);
// otherwise, update 'characters left' counter
else
document.getElementById(cntfield).innerHTML = "<em>" + (maxlimit - field.value.length) + " characters left</em>";
}
//********************************************************************************************
//************All code following below is custom written by Big Brother (eRepublik.ws)************//

function implemented()
{
var r=confirm("Are you sure this suggestion has been implemented on eRepublik.com?");
if(r==true)
  {
  var location = String(window.location).replace("#", "");
  window.location=location+'?implemented=true';
  }
else {}
}

//for eSuggest
function doEdit()
{
	var original = 	document.getElementById("original");
	var edit = 	document.getElementById("edit");
	
	if(edit.style.display == 'none')
	{
		document.getElementById("edit").style.display = '';
		document.getElementById("original").style.display = 'none';
	} else {
		document.getElementById("edit").style.display = 'none';
		document.getElementById("original").style.display = '';
	}
}

//for eSuggest
num_voter = 1;
function showVoters()
{
	var voters = document.getElementById("js_voters").innerHTML.split("*");
	var div = document.getElementById("voter");
	
	bytefx.fade(div, 100, 0, 3, function(){
		
		var temp = voters[num_voter].split("_");
		div.innerHTML = '<span style="font-size: 14px; font-weight: bold;"><a href="http://www.erepublik.com/en/citizen/profile/' + temp[0] + '">' + temp[1] + '</a></span><br/><span class="orange">on ' + temp[2] + '</span>';;
		
		num_voter++;
		if(num_voter > voters.length-1) { num_voter = 1; } //start from beginning if reached end of list
		
		if(voters.length-1 == 1)
		{
			bytefx.fade(div, 0, 100, 3);
		} else {
			bytefx.fade(div, 0, 100, 3, function(){ setTimeout("showVoters()", 2000); });
		}
	});
}

//for eSuggest
function showCountries()
{
	var category = document.getElementById("category").value;

	if(category == "3") {
		document.getElementById("country").style.display = '';
		document.getElementById("title").style.display = 'none';
		document.getElementById("subcategory").style.display = 'none';

	} else {
		document.getElementById("country").style.display = 'none';
		document.getElementById("title").style.display = '';
		document.getElementById("subcategory").style.display = '';

	}
}

//send GET requests
function get(url) {
	
	var data = '';
	//document.getElementById("content").innerHTML = '<center><img src="images/loading.gif"></center>'; //loading animation
	
	var ao = new ajaxObject();
	
	//format & add ajax "tag" for viewer detection
	var start = url.indexOf("?");
	if(start != -1) {
		data = url.substr(start + 1) + "&view=ajax";
		url = url.substr(0, start);	
	} else {
		data = "view=ajax";	
	}
	
	ao.sndReq("get", url, data);
}

//send POST requests
function post(url, formid) {

	var data = '';
	var form = document.getElementById(formid);
	
	//collect post data
	var length = form.length - 1;
	for(i=0; i<length; i++) {
		data = data + form.elements[i].name + '=' + form.elements[i].value;
		
		if(i != length - 1) {
			data += '&';
		}
	}
	
	if(url.indexOf("?") != -1) {
		url += "&view=ajax";	
	} else {
		url += "?view=ajax";
	}
	
	document.getElementById("output").innerHTML = '<center><img src="http://erepublik.ws/images/loading.gif"></center>'; //loading animation
	
	var ao = new ajaxObject();
	ao.sndReq("post", url, data);
}

//fills in battle calc with retrieved citizen data
function fillBattle() 
{
	var data = document.getElementById("ajax_output").innerHTML;

	if(data.indexOf("@@error") == -1)
	{
		data = data.split("*");
		
		//calculate military rank
		if(data[1] < 249) {
			var rank = 1;
		}  else if(data[1] < 749) {
			var rank = 2;
		}  else if(data[1] < 1499) {
			var rank = 3;
		}  else if(data[1] < 4499) {
			var rank = 4;
		}  else if(data[1] < 8999) {
			var rank = 5;
		}  else if(data[1] < 24999) {
			var rank = 6;
		}  else if(data[1] < 74999) {
			var rank = 7;
		}  else if(data[1] >= 75000) {
			var rank = 8;
		}
		
		//set form value
		document.calc.strength.value = data[0];
		document.calc.rank.options[rank-1].selected = true;
		document.calc.weapon.options[5].selected = true;
		document.calc.wellness.value = 100;
		calculate("battle");
	} else {
		alert("Unable to find citizen :(");
	}
}

//fills in productivity calc with retrieved citizen data
function fillProductivity() 
{
	var data = document.getElementById("ajax_output").innerHTML;

	if(data.indexOf("@@error") != -1)
	{
		alert("Unable to find citizen :(");
	} else if(data.indexOf("@@unemployed") != -1) {
	
		alert("This citizen is currently unemployed :(");
	} else {
		data = data.split("*");
		
		//set form values
		document.calc.wellness.value = data[2];
		document.calc.skill.value = data[3];
		document.calc.type.options[data[4]].selected = true;
		document.calc.numemployees.value = data[6];
		document.calc.quality.options[data[5]-1].selected = true;
		calculate("productivity");
	}
}

//only run when company calc page is first loaded
function firstRun()
{
	//set company calc width
	document.getElementById("container").style.width = Math.round(screen.width*0.85) + 'px';
	
	setTimeout("getValue('all')", 1000);
	document.getElementById("button_bookmark").disabled = true;
	document.getElementById("button_savewages").disabled = true;
}

var ajax_productcost = '';
var ajax_rmcost = '';
var ajax_goldvalue = '';

//retrieve values via ajax, for company calc
function getValue(type)
{
	var product = document.getElementById("product").value;
	var quality = document.getElementById("quality").value;
	var country = document.getElementById("country").value;
	var customprice = document.getElementById("customprice");
	var lowestprice = document.getElementById("lowestprice");
	var lowestprice_gold = document.getElementById("lowestprice_gold");

	ao = new buildAjaxObject();
	ao.open("get", "http://erepublik.ws/calculators.php?get=" + type + "&country=" + country + "&product=" + product + "&quality=" + quality, true);
	ao.onreadystatechange = function() { 
	if(ao.readyState == 4)
		{
			//set currency tag
			setCurrencyTags();
			
			var output = ao.responseText;
			output = output.split("_");
			
			//adjust local RM cost (because we're using PPQ1)
			output[3] = Math.round((output[3]/output[4])*100)/100;
			
			//set product costs
			if(type == "all" || type == "productcost")
			{
				ajax_productcost = output[0] + "_" + output[1];
				
				//fill in lowest price & customprice fields
				lowestprice.innerHTML = Math.round(output[1]*100)/100;
				lowestprice_gold.innerHTML = Math.round(output[1]*output[6]*100)/100;
				customprice.value =  Math.round(output[1]*100)/100;
			} 
			
			//set raw material costs
			if(type == "all" || type == "rmcost")
			{ 
				ajax_rmcost = output[2] + "_" + output[3] + "_" + output[4] + "_" + output[5];
				document.getElementById("expense_rm_single").value = Math.round((output[3])*1000)/1000;
			}
			
			//set currency values
			if(type == "all" || type == "currencyvalue")
			{ 
				ajax_goldvalue = output[6];
				
				//fill in customprice field
				customprice.value =  Math.round(output[1]*100)/100;
			}
			
			//show or hide region dropdown
			showRM();
			
			//run calculator
			calculate("company");
		}
	};
		
	ao.send(null);
}

//removes a DOM element
function removeElement(parentDiv, childDiv)
{
     if(document.getElementById(childDiv)) {     
          var child = document.getElementById(childDiv);
          var parent = document.getElementById(parentDiv);
          parent.removeChild(child);
     }
     else {
          return false;
     }
}

//saves employee wages
function saveWages()
{
	var data = '';
	var ao = new buildAjaxObject();
	
	//collect post data
	var length = addFields("numemployees");
	for(i=1; i<length+1; i++) {
	
		var temp = document.getElementById("userid"+i).innerHTML + "-" + document.getElementById("wage"+i).value; //data for this employee
		data = data + "wage"+i + '=' + temp;
		
		if(i != length) {
			data += '&';
		}
	}

	document.getElementById("loading").style.display = ''; //loading animation
	
	ao.onreadystatechange = function() { 
		if(ao.readyState == 4)
		{	
			//hide loading animation
			document.getElementById("loading").style.display = 'none';
			
			//disable button
			document.getElementById("button_savewages").disabled = true;
		}
	};
	
	var companyid = document.getElementById("companyid").value;
	ao.open("post", "http://erepublik.ws/calculators.php?companyid=" + companyid, true);
	ao.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	ao.send(data);
}


//saves employee wages
function bookMarkCompany()
{
	var ao = new buildAjaxObject();
	var companyname = urlencode(js_company_name);
	var companyid = document.getElementById("companyid").value;
	
	document.getElementById("loading").style.display = ''; //loading animation
	
	ao.onreadystatechange = function() { 
		if(ao.readyState == 4)
		{	
			//hide loading animation
			document.getElementById("loading").style.display = 'none';
			
			//disable button
			document.getElementById("button_bookmark").disabled = true;
			
			//add company dynamically to dropdown list
			var optn = document.createElement("option");
			optn.text = js_company_name;
			optn.value = companyid;
			document.getElementById("mycompanies").options.add(optn);
		}
	};
	
	ao.open("get", "http://erepublik.ws/calculators.php?bookmark=" + companyid + "&name=" + companyname, true);
	ao.send(null);
}


//show or hide raw materials dropdown
function showRM() {
		var product = document.getElementById("product");
		var rmregion = document.getElementById("rmregion");
		var tr_expense_rm = document.getElementById("tr_expense_rm");
		
		if(product.value > 4 && product.value < 10)
		{
			rmregion.style.display = '';
			tr_expense_rm.style.display = 'none';
		} else {
			rmregion.style.display = 'none';
			tr_expense_rm.style.display = '';
		}
}

//enables button to save wages
function enableSaveWages()
{
	document.getElementById("button_savewages").disabled = false;
}

//enables button to bookmark company
function enableBookmark()
{
	document.getElementById("button_bookmark").disabled = false;
}

js_company_name = '';
//auto-fill in company details
function fillCompany(event)
{	
	var company_id = document.getElementById("companyid").value;
	
	if(is_numeric(company_id) && company_id > 0) {
	if(!event || event.keyCode == 13) {
		
		enableSaveWages();
		enableBookmark();

		ao = new buildAjaxObject();
		ao.open("get", "http://erepublik.ws/calculators.php?get=company&id=" + company_id, true);
		ao.onreadystatechange = function() { 
		if(ao.readyState == 4)
			{
				var output = ao.responseText;
				
				if(output == "@@error") 
				{ 
					alert("That company has no employees or does not exist :("); 
					
				} else {
					output = output.split("_@_");
					
					//set country in dropdown
					var country = document.getElementById("country");
					for(var i=0; i<country.length; i++)
					{
						var temp = country.options[i].value.split("_");

						if(temp[2].toLowerCase() == output[0].toLowerCase()) {
							country.options[i].selected = true; 
						}
					}
					
					//set quality in dropdown
					var quality = document.getElementById("quality");
					quality.options[output[2]-1].selected = true; 
					
					//set product in dropdown
					var products = document.getElementById("product");
					for(var i=0; i<products.length; i++)
					{
						if(products.options[i].value == output[1]) {
							products.options[i].selected = true; 
						}
					}
					
					//set name
					js_company_name = stripslashes(output[output.length-1]);
					document.getElementById("company_name").innerHTML = js_company_name;
					
					//set employees skill & wellness
					var employees = output.slice(2, -1);
					addFields(employees.length-1); //set correct number of employee fields
					for(var i=1; i<employees.length; i++)
					{
						var temp = employees[i].split("|");
						document.getElementById("skill"+i).value = temp[0];
						document.getElementById("wellness"+i).value = temp[1];
						document.getElementById("userid"+i).innerHTML = temp[3];
								
						if(temp[4] != '') { document.getElementById("wage"+i).value = temp[4]; } else { document.getElementById("wage"+i).value = 0; }
						
						document.getElementById("user"+i).innerHTML = '<a href="http://www.erepublik.com/en/citizen/profile/' + temp[3] + '" target="_blank">' + temp[2] + '</a>';
					}
					
					//set prices + currency tag
					getValue("all");
					
					//hide loading animation
					document.getElementById("loading").style.display = 'none';
				}
			}
		};
		
		document.getElementById("loading").style.display = ''; //show loading animation	
		ao.send(null);
	}
	}
}

//clear all username fields
function clearUsers()
{
	var numusers = addFields("numelements");
	for(var i=1; i<numusers+1; i++)
	{
		document.getElementById("user"+i).innerHTML = '';
	}
}

//add or remove employee fields
function addFields(action)
{
	var employees = document.getElementById("employees");

	//find out how many are currently shown
	var c = 1;
	var stop = false;
	var numemployees = 0;
	
	while(stop == false)
	{
		if(!document.getElementById("e"+c)) {
			break;
		} else {
			
			if(document.getElementById("skill"+c).value !='' && document.getElementById("wellness"+c).value != '')
			{
				numemployees++;
			}
		}

		c++;
	}
	
	var numelements = c-1;
	var nextelement = c;
	
	var currency = document.getElementById("country").value;
	currency = currency.split("_");
	currency = currency[1];

	//fill in new field with previous field's values
	var skillvalue = document.getElementById("skill" + numelements).value;
	var wagevalue = document.getElementById("wage" + numelements).value;
	var wellnessvalue = document.getElementById("wellness" + numelements).value;
	
	if(action == 'p1')
	{
		//add one field
		var newtr = document.createElement("tr");
		newtr.setAttribute('id', 'e' + nextelement);
		newtr.setAttribute('onmouseover', "this.style.background='#EEE';");
		newtr.setAttribute('onmouseout', "this.style.background='#FFF';");

		var newtd1 = document.createElement("td");
		newtd1.innerHTML = '<span id="userid' + nextelement + '" style="display: none;"></span><input type="text" id="skill' + nextelement + '" size="5" value="' + skillvalue +'" onkeyup="calculate(\'company\');">';
		
		var newtd2 = document.createElement("td");
		newtd2.innerHTML = '<input type="text" id="wage' + nextelement + '" size="6" value="' + wagevalue +'" onkeyup="calculate(\'company\'); enableSaveWages();"> <span id="employee_cur' + nextelement + '" class="currency">' + currency + '</span>';
		
		var newtd3 = document.createElement("td");
		newtd3.innerHTML = '<input type="text" id="wellness' + nextelement + '" size="3"  value="' + wellnessvalue +'" onkeyup="calculate(\'company\');">';
		newtd3.style.textAlign = 'center';
		
		var newtd4 = document.createElement("td");
		newtd4.setAttribute('id', 'productivity' + nextelement);
		newtd4.setAttribute('class', 'num');
		
		var newtd5 = document.createElement("td");
		newtd5.setAttribute('id', 'products' + nextelement);
		newtd5.setAttribute('class', 'num');
		
		var newtd6 = document.createElement("td");
		newtd6.setAttribute('id', 'eprofit' + nextelement);
		newtd6.setAttribute('class', 'num');
		
		var newtd7 = document.createElement("td");
		newtd7.setAttribute('id', 'user' + nextelement);
		
		newtr.appendChild(newtd1);
		newtr.appendChild(newtd2);
		newtr.appendChild(newtd3);
		newtr.appendChild(newtd4);
		newtr.appendChild(newtd5);
		newtr.appendChild(newtd6);
		newtr.appendChild(newtd7);
		document.getElementById('employees').appendChild(newtr);

		calculate("company");
		enableSaveWages();
		
		//var etable = document.getElementById("employees");
		//sorttable.makeSortable(etable);
	
	} else if(action == "m1" && numelements > 1) {
		
		//remove one field
  		employees.deleteRow(numelements);
  		calculate("company");
		
	} else if(is_numeric(action)) {
		
		//make it 10 or 20 total fields
		var difference = action - numelements;
		
		if(difference > 0)
		{
			//add desired amount
			for(var i=0; i<difference; i++)
			{ addFields("p1"); }
		} else {
			
			difference *= -1;
			
			//remove some elements
			for(var i=0; i<difference; i++)
			{ addFields("m1"); }
		}
		
	} else if(action == "numelements") {
	
		return numelements;
	} else if(action == "numemployees") {
		
		return numemployees;
	}
}

//show 10 or 20 employee fields
function showEmployees() {
	
	var product = document.getElementById("product");
		
	if(product.value == 10 || product.value == 11 || product.value == 12)
	{
		//show 20 employee fields
		addFields(20);
	} else {
		//show 10 employee fields
		addFields(10);
	}
}


//sets the currency tags ("ARS", "CAD")
function setCurrencyTags() {
	
	var currency = document.getElementById("country").value;
	currency = currency.split("_");
	currency = currency[1];
	
	//set each tag
	for(var i=1; i<13; i++)
	{
		document.getElementById("cur"+i).innerHTML = currency;
	}
	
	//set each tag in employee list
	var numelements = addFields("numelements");

	for(var b=1; b < numelements+1; b++)
	{
		document.getElementById("employee_cur"+b).innerHTML = currency;
	}
}


//set all employee fields to a certain value
function setAll(action) 
{
	var setallskills = document.getElementById("setallskills").value;
	var setallwages = document.getElementById("setallwages").value;
	var setallwellness = document.getElementById("setallwellness").value;
	
	//set each tag in employee list
	var numelements = addFields("numelements");

	for(var b=1; b < numelements+1; b++)
	{
		switch(action)
		{
			case 1: document.getElementById("skill"+b).value = setallskills; break;
			case 2: document.getElementById("wellness"+b).value = setallwellness; break;
			case 3: document.getElementById("wage"+b).value = setallwages; enableSaveWages(); break;
		}
	}
}


//calculators
function calculate(type)
{
	if(type == 'company') {
		
		var product = document.getElementById("product");
		var quality = document.getElementById("quality").value;
		var region = parseFloat(document.getElementById("rmregion").value);
		
		var totalproducts = document.getElementById("totalproducts");
		var expense_salaries = document.getElementById("expense_salaries");
		var expense_rm_single = document.getElementById("expense_rm_single").value;
		var expense_rmunits = document.getElementById("expense_rmunits");
		var expense_rmcost = document.getElementById("expense_rmcost");
		
		var revenue_totalproducts = document.getElementById("revenue_totalproducts");
		var revenue_productprice = document.getElementById("revenue_productprice");
		var revenue = document.getElementById("revenue");
		
		var profit_revenue = document.getElementById("profit_revenue");
		var profit_salariescost = document.getElementById("profit_salariescost");
		var profit_rmcost = document.getElementById("profit_rmcost");	
		var profit = document.getElementById("profit");
		var profit_gold = document.getElementById("profit_gold");
		
		var numfields = addFields("numelements");
		var numemployees = addFields("numemployees");
		var customprice = document.getElementById("customprice").value;
		var vat = document.getElementById("vat").value;
		
		var cost_per_product = document.getElementById("cost_per_product");
		var cost_per_product_gold = document.getElementById("cost_per_product_gold");		
		
		document.getElementById("num_employees").innerHTML = numemployees;
		
		//determine how many products per productivity unit
		if(product.value == 10) {
			var units = 200;
		} else if(product.value == 11 || product.value == 12) {
			var units = 2000;
		} else if(product.value == 3){
			var units = 5;
		} else if(product.value == 1){
			var units = 1;
		} else if(product.value == 2){
			var units = 2;
		} else if(product.value == 4){
			var units = 10;
		} else {
			var units = quality;
		}

		//------------------------
		var totalproductivity = 0;
		var totalsalariescost = 0;
		var rmcosts = ajax_rmcost.split("_"); //gold_local_quality
					
		//calculate total employee cost & productivity
		for(i=1; i<numfields+1; i++)
		{
			//loop trough each employee field
			if(document.getElementById("skill"+i).value != '')
			{
				//calculate employee's productivity
				var skill = parseFloat(document.getElementById("skill"+i).value);
				var wellness = parseFloat(document.getElementById("wellness"+i).value);
				var salary = parseFloat(document.getElementById("wage"+i).value);
				var numproducts = document.getElementById("products"+i);
				var productivity = document.getElementById("productivity"+i);
				var eprofit = document.getElementById("eprofit"+i);
				
				if(wellness == '' || !is_numeric(wellness)) { wellness = 0; }
				if(skill == '' || !is_numeric(skill)) { skill = 0; }
				if(salary == '' || !is_numeric(salary)) { salary = 0; }
				
				var employees = numemployees;
				
				//if wellness = 0, they are dead and not working
				if(wellness > 0) {
				
					//skill multiplier
					if(skill == 0) { skill = 0.1; }
					
					//num employee multiplier
					if(product.value == 10 || product.value == 11 || product.value == 12) { var recommended = 20; } else { var recommended = 10; }
					
					if(employees <= recommended)
					{ 
						employees = 1 + (employees/recommended);
					} else if(employees > recommended) {
						employees = 3 - (employees/recommended);
					}
					
					if(employees < 1) { employees = 1; }
					
					if(product.value > 4 && product.value < 10)
					{
						//raw materials
						var prod = 1/4 * skill * employees * (1 + 2 * wellness/100) * region * 1.5 * ((11-quality) / 10);
					} else {
						
						//constructions or manufacturing
						var prod = 1/2 * skill * employees * (1 + 2 * wellness/100) * 1.5 * (1/quality);
					}
					
					//display this employee's productivity
					productivity.innerHTML = prod.toFixed(2);

					
					if(product.value > 4 && product.value < 10) {
						//raw materials profit
						var js_e_profit = (prod*customprice) - (salary);
						numproducts.innerHTML = prod.toFixed(2);
					} else {
						var js_e_profit = ((prod/units)*customprice) - ((prod*expense_rm_single*quality) + (salary));
						numproducts.innerHTML = (prod/units).toFixed(2);
					}
					
					eprofit.innerHTML =  js_e_profit.toFixed(2) + ' <font color="#FF9900">/</font> ' + (js_e_profit*ajax_goldvalue).toFixed(2) + ' <img src="http://erepublik.ws/images/icon_gold.gif" alt="GOLD" class="icon_gold">';
					
					//add to totals
					totalproductivity += prod;
					totalsalariescost  = totalsalariescost + salary;
				}
			}
		}
		
		if(product.value > 4 && product.value < 10) {
			//raw materials
			totalproducts.innerHTML = totalproductivity.toFixed(2);
			expense_rmcost.innerHTML = 0;
		} else { 
			//all other products
			totalproducts.innerHTML = (totalproductivity/units).toFixed(2);
		}

		expense_salaries.innerHTML = totalsalariescost.toFixed(2);
		
		//calculate raw materials costs
		if(product.value > 4 && product.value < 10)
		{} else {
			document.getElementById("rm_info").innerHTML = "Q" + rmcosts[2] + " " + rmcosts[3];
			expense_rmunits.innerHTML = Math.round(totalproductivity*quality);
			expense_rmcost.innerHTML = Math.round(totalproductivity*expense_rm_single*quality*10)/10;
		}
		
		//calculate cost per product
		js_cost_per_product = (parseFloat(expense_rmcost.innerHTML) + parseFloat(expense_salaries.innerHTML))/parseFloat(totalproducts.innerHTML);
		cost_per_product.innerHTML = js_cost_per_product.toFixed(2);
		cost_per_product_gold.innerHTML = Math.round(js_cost_per_product * ajax_goldvalue * 100)/100;
		
		//calculate revenue
		revenue_totalproducts.innerHTML = totalproducts.innerHTML;
		revenue_productprice.innerHTML = Math.round(customprice*100)/100;
		var js_revenue = Math.round(parseFloat(totalproducts.innerHTML) * customprice*100)/100;
		
		//apply VAT % to revenue
		if(vat > 0) { js_revenue = js_revenue - ((vat/100)*js_revenue); js_revenue = Math.round(js_revenue*100)/100; }
		revenue.innerHTML = js_revenue.toFixed(2);
				
		//show profit
		profit_revenue.innerHTML = js_revenue;
		profit_salariescost.innerHTML = expense_salaries.innerHTML;
		profit_rmcost.innerHTML = expense_rmcost.innerHTML;
		
		if(product.value > 4 && product.value < 10) {
		
			profit_rmcost.innerHTML = 0;
			
			//raw materials profit
			var js_profit = js_revenue - parseFloat(expense_salaries.innerHTML);
			js_profit = Math.round(js_profit*10)/10; 
			
		}else {
			var js_profit = Math.round((js_revenue - (parseFloat(expense_rmcost.innerHTML) + parseFloat(expense_salaries.innerHTML)))*10)/10;
		}
		
		profit.innerHTML = js_profit;
		profit_gold.innerHTML = Math.round(js_profit * ajax_goldvalue * 100)/100;
		
		//make table sortable again
		//var etable = document.getElementById("employees");
		//sorttable.makeSortable(etable);
		
	} else if(type == 'battle') {
	
		var strength = document.calc.strength.value;
		var wellness = document.calc.wellness.value;
		var weapon = document.calc.weapon.value;
		var rank = document.calc.rank.value;
		var bonus = 2;
		
		if(weapon != "none")
		{
			var maxhit = (1+(weapon/5)) * (1+(rank/5))  * strength * bonus * (1 + ((wellness-25)/100));
		} else {
			var maxhit = 0.5 * (1+(rank/5))  * strength * bonus * (1 + ((wellness-25)/100));	
		}
		
		document.getElementById("output").innerHTML = "Maxhit: " + Math.ceil(maxhit);
	
	} else if(type == 'wellness') {
	
		var wellness = document.calc.wellness.value;
		var food = document.calc.food.value;
		var house = document.calc.house.value;
		
		if(wellness != 100)
		{
		if(house == "none")
		{
			var gain = 	(1.5 - (wellness/100)) * parseInt(food);
		} else {
			var gain = 	(1.5 - (wellness/100)) * (parseInt(food) + parseInt(house));
		}

		} else {
			var gain = 0;
		}

		document.getElementById("output").innerHTML = "Gain: " + Math.round(gain*10)/10;
		
	} else if(type == 'productivity') {

		var wellness = document.calc.wellness.value;
		var region = document.calc.region.value;
		var skill = document.calc.skill.value;
		var employees = document.calc.numemployees.value;
		var type = document.calc.type.value;
		var quality = document.calc.quality.value;
		
		//if relevant, show region dropdown menu
		showRegion();
				
		//skill multiplier
		if(skill == 0) { skill = 0.1; }
		
		//num employee multiplier
		if(type == 2) { var recommended = 20; } else { var recommended = 10; }
		
		if(employees <= recommended)
		{ 
			employees = 1 + (employees/recommended);
		} else if(employees > recommended) {
			employees = 3 - (employees/recommended);
		}
		
		if(employees < 1) { employees = 1; }

		if(type == 3)
		{
			//raw materials
			var prod = 	1/4 * skill * employees * (1 + 2 * wellness/100) * region * 1.5 * ((11-quality) / 10);
		} else {
			//constructions or manufacturing
			var prod = 	1/2 * skill * employees * (1 + 2 * wellness/100) * 1.5 * (1/quality);
		}

		document.getElementById("output").innerHTML = "Productivity: " + Math.round(prod*100)/100;
	}
}

//show or hide the region dropdown from productivity calculator
function showRegion()
{
	if(document.calc.type.value == 3)
	{
		document.getElementById('region').style.display = '';
	} else {
		document.getElementById('region').style.display = 'none';
	}
}

//build products tool submit URL
function buildURL()
{
		var quality = document.products.q.value;
		var product = document.products.p.value;
		var country = document.products.country.value;
		var sortby = document.products.sortby.value;
		
		country = country.toLowerCase();
		
		//show extra sortby dropdown
		if(product == 'diamonds' || product == 'wood' || product == 'iron' || product == 'oil' || product == 'grain' || product == 'gift')
		{
			document.products.sortby.style.display = '';
			
		} else {
			document.products.sortby.style.display = 'none';
			document.products.sortby.value = 1; sortby = 1; //change sortby back to default
		}
		
		if(sortby == 1)
		{
			//sort normally
			if(country != 'all')
			{
				var url = "http://erepublik.ws/prices/"+product+"/"+quality+"/"+country;
			} else {
			
				var url = "http://erepublik.ws/prices/"+product+"/"+quality;
			}

			document.products.viewproducts.onclick = function() { window.location = url; };
			document.products.q.style.display = '';
		
		} else {
		
			//sort by per Q1 price
			var url = "http://erepublik.ws/prices/"+product+"/"+quality+"/"+country+"/priceperq1";
			document.products.viewproducts.onclick = function() { window.location = url; };
			document.products.q.style.display = 'none';
		}
}

//---------------------------------------------------------------------------
/*
  SortTable
  version 2
  7th April 2007
  Stuart Langridge, http://www.kryogenix.org/code/browser/sorttable/
  
  Instructions:
  Download this file
  Add <script src="sorttable.js"></script> to your HTML
  Add class="sortable" to any table you'd like to make sortable
  Click on the headers to sort
  
  Thanks to many, many people for contributions and suggestions.
  Licenced as X11: http://www.kryogenix.org/code/browser/licence.html
  This basically means: do what you want with it.
*/

 
var stIsIE = /*@cc_on!@*/false;

sorttable = {
  init: function() {
    // quit if this function has already been called
    if (arguments.callee.done) return;
    // flag this function so we don't do the same thing twice
    arguments.callee.done = true;
    // kill the timer
    if (_timer) clearInterval(_timer);
    
    if (!document.createElement || !document.getElementsByTagName) return;
    
    sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/;
    
    forEach(document.getElementsByTagName('table'), function(table) {
      if (table.className.search(/\bsortable\b/) != -1) {
        sorttable.makeSortable(table);
      }
    });
    
  },
  
  makeSortable: function(table) {
    if (table.getElementsByTagName('thead').length == 0) {
      // table doesn't have a tHead. Since it should have, create one and
      // put the first table row in it.
      the = document.createElement('thead');
      the.appendChild(table.rows[0]);
      table.insertBefore(the,table.firstChild);
    }
    // Safari doesn't support table.tHead, sigh
    if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0];
    
    if (table.tHead.rows.length != 1) return; // can't cope with two header rows
    
    // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as
    // "total" rows, for example). This is B&R, since what you're supposed
    // to do is put them in a tfoot. So, if there are sortbottom rows,
    // for backwards compatibility, move them to tfoot (creating it if needed).
    sortbottomrows = [];
    for (var i=0; i<table.rows.length; i++) {
      if (table.rows[i].className.search(/\bsortbottom\b/) != -1) {
        sortbottomrows[sortbottomrows.length] = table.rows[i];
      }
    }
    if (sortbottomrows) {
      if (table.tFoot == null) {
        // table doesn't have a tfoot. Create one.
        tfo = document.createElement('tfoot');
        table.appendChild(tfo);
      }
      for (var i=0; i<sortbottomrows.length; i++) {
        tfo.appendChild(sortbottomrows[i]);
      }
      delete sortbottomrows;
    }
    
    // work through each column and calculate its type
    headrow = table.tHead.rows[0].cells;
    for (var i=0; i<headrow.length; i++) {
      // manually override the type with a sorttable_type attribute
      if (!headrow[i].className.match(/\bsorttable_nosort\b/)) { // skip this col
        mtch = headrow[i].className.match(/\bsorttable_([a-z0-9]+)\b/);
        if (mtch) { override = mtch[1]; }
	      if (mtch && typeof sorttable["sort_"+override] == 'function') {
	        headrow[i].sorttable_sortfunction = sorttable["sort_"+override];
	      } else {
	        headrow[i].sorttable_sortfunction = sorttable.guessType(table,i);
	      }
	      // make it clickable to sort
	      headrow[i].sorttable_columnindex = i;
	      headrow[i].sorttable_tbody = table.tBodies[0];
	      dean_addEvent(headrow[i],"click", function(e) {

          if (this.className.search(/\bsorttable_sorted\b/) != -1) {
            // if we're already sorted by this column, just 
            // reverse the table, which is quicker
            sorttable.reverse(this.sorttable_tbody);
            this.className = this.className.replace('sorttable_sorted',
                                                    'sorttable_sorted_reverse');
            this.removeChild(document.getElementById('sorttable_sortfwdind'));
            sortrevind = document.createElement('span');
            sortrevind.id = "sorttable_sortrevind";
            sortrevind.innerHTML = stIsIE ? '&nbsp<font face="webdings">5</font>' : '&nbsp;&#x25B4;';
            this.appendChild(sortrevind);
            return;
          }
          if (this.className.search(/\bsorttable_sorted_reverse\b/) != -1) {
            // if we're already sorted by this column in reverse, just 
            // re-reverse the table, which is quicker
            sorttable.reverse(this.sorttable_tbody);
            this.className = this.className.replace('sorttable_sorted_reverse',
                                                    'sorttable_sorted');
            this.removeChild(document.getElementById('sorttable_sortrevind'));
            sortfwdind = document.createElement('span');
            sortfwdind.id = "sorttable_sortfwdind";
            sortfwdind.innerHTML = stIsIE ? '&nbsp<font face="webdings">6</font>' : '&nbsp;&#x25BE;';
            this.appendChild(sortfwdind);
            return;
          }
          
          // remove sorttable_sorted classes
          theadrow = this.parentNode;
          forEach(theadrow.childNodes, function(cell) {
            if (cell.nodeType == 1) { // an element
              cell.className = cell.className.replace('sorttable_sorted_reverse','');
              cell.className = cell.className.replace('sorttable_sorted','');
            }
          });
          sortfwdind = document.getElementById('sorttable_sortfwdind');
          if (sortfwdind) { sortfwdind.parentNode.removeChild(sortfwdind); }
          sortrevind = document.getElementById('sorttable_sortrevind');
          if (sortrevind) { sortrevind.parentNode.removeChild(sortrevind); }
          
          this.className += ' sorttable_sorted';
          sortfwdind = document.createElement('span');
          sortfwdind.id = "sorttable_sortfwdind";
          sortfwdind.innerHTML = stIsIE ? '&nbsp<font face="webdings">6</font>' : '&nbsp;&#x25BE;';
          this.appendChild(sortfwdind);

	        // build an array to sort. This is a Schwartzian transform thing,
	        // i.e., we "decorate" each row with the actual sort key,
	        // sort based on the sort keys, and then put the rows back in order
	        // which is a lot faster because you only do getInnerText once per row
	        row_array = [];
	        col = this.sorttable_columnindex;
	        rows = this.sorttable_tbody.rows;
	        for (var j=0; j<rows.length; j++) {
	          row_array[row_array.length] = [sorttable.getInnerText(rows[j].cells[col]), rows[j]];
	        }
	        /* If you want a stable sort, uncomment the following line */
	        //sorttable.shaker_sort(row_array, this.sorttable_sortfunction);
	        /* and comment out this one */
	        row_array.sort(this.sorttable_sortfunction);
	        
	        tb = this.sorttable_tbody;
	        for (var j=0; j<row_array.length; j++) {
	          tb.appendChild(row_array[j][1]);
	        }
	        
	        delete row_array;
	      });
	    }
    }
  },
  
  guessType: function(table, column) {
    // guess the type of a column based on its first non-blank row
    sortfn = sorttable.sort_alpha;
    for (var i=0; i<table.tBodies[0].rows.length; i++) {
      text = sorttable.getInnerText(table.tBodies[0].rows[i].cells[column]);
      if (text != '') {
        if (text.match(/^-?[£$¤]?[\d,.]+%?$/)) {
          return sorttable.sort_numeric;
        }
        // check for a date: dd/mm/yyyy or dd/mm/yy 
        // can have / or . or - as separator
        // can be mm/dd as well
        possdate = text.match(sorttable.DATE_RE)
        if (possdate) {
          // looks like a date
          first = parseInt(possdate[1]);
          second = parseInt(possdate[2]);
          if (first > 12) {
            // definitely dd/mm
            return sorttable.sort_ddmm;
          } else if (second > 12) {
            return sorttable.sort_mmdd;
          } else {
            // looks like a date, but we can't tell which, so assume
            // that it's dd/mm (English imperialism!) and keep looking
            sortfn = sorttable.sort_ddmm;
          }
        }
      }
    }
    return sortfn;
  },
  
  getInnerText: function(node) {
    // gets the text we want to use for sorting for a cell.
    // strips leading and trailing whitespace.
    // this is *not* a generic getInnerText function; it's special to sorttable.
    // for example, you can override the cell text with a customkey attribute.
    // it also gets .value for <input> fields.
    
    hasInputs = (typeof node.getElementsByTagName == 'function') &&
                 node.getElementsByTagName('input').length;
    
    if (node.getAttribute("sorttable_customkey") != null) {
      return node.getAttribute("sorttable_customkey");
    }
    else if (typeof node.textContent != 'undefined' && !hasInputs) {
      return node.textContent.replace(/^\s+|\s+$/g, '');
    }
    else if (typeof node.innerText != 'undefined' && !hasInputs) {
      return node.innerText.replace(/^\s+|\s+$/g, '');
    }
    else if (typeof node.text != 'undefined' && !hasInputs) {
      return node.text.replace(/^\s+|\s+$/g, '');
    }
    else {
      switch (node.nodeType) {
        case 3:
          if (node.nodeName.toLowerCase() == 'input') {
            return node.value.replace(/^\s+|\s+$/g, '');
          }
        case 4:
          return node.nodeValue.replace(/^\s+|\s+$/g, '');
          break;
        case 1:
        case 11:
          var innerText = '';
          for (var i = 0; i < node.childNodes.length; i++) {
            innerText += sorttable.getInnerText(node.childNodes[i]);
          }
          return innerText.replace(/^\s+|\s+$/g, '');
          break;
        default:
          return '';
      }
    }
  },
  
  reverse: function(tbody) {
    // reverse the rows in a tbody
    newrows = [];
    for (var i=0; i<tbody.rows.length; i++) {
      newrows[newrows.length] = tbody.rows[i];
    }
    for (var i=newrows.length-1; i>=0; i--) {
       tbody.appendChild(newrows[i]);
    }
    delete newrows;
  },
  
  /* sort functions
     each sort function takes two parameters, a and b
     you are comparing a[0] and b[0] */
  sort_numeric: function(a,b) {
    aa = parseFloat(a[0].replace(/[^0-9.-]/g,''));
    if (isNaN(aa)) aa = 0;
    bb = parseFloat(b[0].replace(/[^0-9.-]/g,'')); 
    if (isNaN(bb)) bb = 0;
    return aa-bb;
  },
  sort_alpha: function(a,b) {
    if (a[0]==b[0]) return 0;
    if (a[0]<b[0]) return -1;
    return 1;
  },
  sort_ddmm: function(a,b) {
    mtch = a[0].match(sorttable.DATE_RE);
    y = mtch[3]; m = mtch[2]; d = mtch[1];
    if (m.length == 1) m = '0'+m;
    if (d.length == 1) d = '0'+d;
    dt1 = y+m+d;
    mtch = b[0].match(sorttable.DATE_RE);
    y = mtch[3]; m = mtch[2]; d = mtch[1];
    if (m.length == 1) m = '0'+m;
    if (d.length == 1) d = '0'+d;
    dt2 = y+m+d;
    if (dt1==dt2) return 0;
    if (dt1<dt2) return -1;
    return 1;
  },
  sort_mmdd: function(a,b) {
    mtch = a[0].match(sorttable.DATE_RE);
    y = mtch[3]; d = mtch[2]; m = mtch[1];
    if (m.length == 1) m = '0'+m;
    if (d.length == 1) d = '0'+d;
    dt1 = y+m+d;
    mtch = b[0].match(sorttable.DATE_RE);
    y = mtch[3]; d = mtch[2]; m = mtch[1];
    if (m.length == 1) m = '0'+m;
    if (d.length == 1) d = '0'+d;
    dt2 = y+m+d;
    if (dt1==dt2) return 0;
    if (dt1<dt2) return -1;
    return 1;
  },
  
  shaker_sort: function(list, comp_func) {
    // A stable sort function to allow multi-level sorting of data
    // see: http://en.wikipedia.org/wiki/Cocktail_sort
    // thanks to Joseph Nahmias
    var b = 0;
    var t = list.length - 1;
    var swap = true;

    while(swap) {
        swap = false;
        for(var i = b; i < t; ++i) {
            if ( comp_func(list[i], list[i+1]) > 0 ) {
                var q = list[i]; list[i] = list[i+1]; list[i+1] = q;
                swap = true;
            }
        } // for
        t--;

        if (!swap) break;

        for(var i = t; i > b; --i) {
            if ( comp_func(list[i], list[i-1]) < 0 ) {
                var q = list[i]; list[i] = list[i-1]; list[i-1] = q;
                swap = true;
            }
        } // for
        b++;

    } // while(swap)
  }  
}

/* ******************************************************************
   Supporting functions: bundled here to avoid depending on a library
   ****************************************************************** */

// Dean Edwards/Matthias Miller/John Resig

/* for Mozilla/Opera9 */
if (document.addEventListener) {
    document.addEventListener("DOMContentLoaded", sorttable.init, false);
}

/* for Internet Explorer */
/*@cc_on @*/
/*@if (@_win32)
    document.write("<script id=__ie_onload defer src=javascript:void(0)><\/script>");
    var script = document.getElementById("__ie_onload");
    script.onreadystatechange = function() {
        if (this.readyState == "complete") {
            sorttable.init(); // call the onload handler
        }
    };
/*@end @*/

/* for Safari */
if (/WebKit/i.test(navigator.userAgent)) { // sniff
    var _timer = setInterval(function() {
        if (/loaded|complete/.test(document.readyState)) {
            sorttable.init(); // call the onload handler
        }
    }, 10);
}

/* for other browsers */
window.onload = sorttable.init;

// written by Dean Edwards, 2005
// with input from Tino Zijdel, Matthias Miller, Diego Perini

// http://dean.edwards.name/weblog/2005/10/add-event/

function dean_addEvent(element, type, handler) {
	if (element.addEventListener) {
		element.addEventListener(type, handler, false);
	} else {
		// assign each event handler a unique ID
		if (!handler.$$guid) handler.$$guid = dean_addEvent.guid++;
		// create a hash table of event types for the element
		if (!element.events) element.events = {};
		// create a hash table of event handlers for each element/event pair
		var handlers = element.events[type];
		if (!handlers) {
			handlers = element.events[type] = {};
			// store the existing event handler (if there is one)
			if (element["on" + type]) {
				handlers[0] = element["on" + type];
			}
		}
		// store the event handler in the hash table
		handlers[handler.$$guid] = handler;
		// assign a global event handler to do all the work
		element["on" + type] = handleEvent;
	}
};
// a counter used to create unique IDs
dean_addEvent.guid = 1;

function removeEvent(element, type, handler) {
	if (element.removeEventListener) {
		element.removeEventListener(type, handler, false);
	} else {
		// delete the event handler from the hash table
		if (element.events && element.events[type]) {
			delete element.events[type][handler.$$guid];
		}
	}
};

function handleEvent(event) {
	var returnValue = true;
	// grab the event object (IE uses a global event object)
	event = event || fixEvent(((this.ownerDocument || this.document || this).parentWindow || window).event);
	// get a reference to the hash table of event handlers
	var handlers = this.events[event.type];
	// execute each event handler
	for (var i in handlers) {
		this.$$handleEvent = handlers[i];
		if (this.$$handleEvent(event) === false) {
			returnValue = false;
		}
	}
	return returnValue;
};

function fixEvent(event) {
	// add W3C standard event methods
	event.preventDefault = fixEvent.preventDefault;
	event.stopPropagation = fixEvent.stopPropagation;
	return event;
};
fixEvent.preventDefault = function() {
	this.returnValue = false;
};
fixEvent.stopPropagation = function() {
  this.cancelBubble = true;
}

// Dean's forEach: http://dean.edwards.name/base/forEach.js
/*
	forEach, version 1.0
	Copyright 2006, Dean Edwards
	License: http://www.opensource.org/licenses/mit-license.php
*/

// array-like enumeration
if (!Array.forEach) { // mozilla already supports this
	Array.forEach = function(array, block, context) {
		for (var i = 0; i < array.length; i++) {
			block.call(context, array[i], i, array);
		}
	};
}

// generic enumeration
Function.prototype.forEach = function(object, block, context) {
	for (var key in object) {
		if (typeof this.prototype[key] == "undefined") {
			block.call(context, object[key], key, object);
		}
	}
};

// character enumeration
String.forEach = function(string, block, context) {
	Array.forEach(string.split(""), function(chr, index) {
		block.call(context, chr, index, string);
	});
};

// globally resolve forEach enumeration
var forEach = function(object, block, context) {
	if (object) {
		var resolve = Object; // default
		if (object instanceof Function) {
			// functions have a "length" property
			resolve = Function;
		} else if (object.forEach instanceof Function) {
			// the object implements a custom forEach method so use that
			object.forEach(block, context);
			return;
		} else if (typeof object == "string") {
			// the object is a string
			resolve = String;
		} else if (typeof object.length == "number") {
			// the object is array-like
			resolve = Array;
		}
		resolve.forEach(object, block, context);
	}
};