var backColor="";
	var textColor="";
	var url = "https://www.potatosystem.com/process/sell?compact&";
	var tans = new Array();
	
	function addTan(tanInput, currency, backColor, textColor){
		
		var genUrl = url;
		
		
		genUrl = genUrl+"tan="+makeTanString(tanInput)+addOtherParameters(currency, backColor, textColor);
		
		
		frames['compactShoppingCart'].location.href=genUrl;
	}
	
	function makeTanString(input){
		var result="";
		
		if(tans.length==0){
			tans = new Array(1);
			tans[0]=input;
		}else{
			var inArray = false;
			
			for(var i=0; i<tans.length; i++){
				if(input==tans[i]){
					inArray=true;
				}
			}
			
			if(!inArray){
				var copyTans = new Array(tans.length+1);
				
				for(var i=0; i<tans.length; i++){
					copyTans[i]=tans[i];
				}
				
				copyTans[tans.length]=input;
				tans = copyTans;
			}
			
		}
		
		for(var i=0; i<tans.length; i++){
			if(i==0){
				result=tans[i];
			}else{
				result=result+"-"+tans[i];
			}
		}
		
		return result;
		
	
	}
	
	function addOtherParameters(currency, backColor, textColor){
		var result="";
		
		if(currency.length!=0){
			result = "&currency="+currency;
		}
		
		if(backColor.length!=0){
			result = result+"&backcolor="+backColor;
		}
		
		if(textColor.length!=0){
			result = result+"&textcolor="+textColor;
		}
		
		return result;
		
	}
	
	function clearShoppingCart(currency, backColor, textColor){
		tans = new Array();
		
		var genUrl = url

		
		frames['compactShoppingCart'].location.href=genUrl+addOtherParameters(currency, backColor, textColor)+"&clear";
	}