/* author: Data Access Europe B.V. */
/* Creation date: 4-4-2006 */
/* This file handles all javascript functions for Electos webshop*/


var cDecimalSeparator = ".";


function CalculateTax(iPrice, iTax){
	var iMultiply = 0;
	var iPrice_tax = 0;
	
	if (iTax > 10){
		iMultiply = '1.' + iTax; 	
	} else {
		iMultiply = '1.0' + iTax; 
	}
	iPrice_tax = iPrice * iMultiply;
	iPrice_tax = iPrice_tax.toFixed(2);
		
	if (isNaN(iPrice_tax)) {
		//return "Error in calculating tax price";
	}else{		
		iPrice_tax = makeNumber(iPrice_tax);
		//iPrice_tax = iPrice_tax + "";
		return makeDecimal(iPrice_tax);		
	}
}
// End CalculateTax



function CalculateTotal(){
	var nSubTotalPrice  = makeNumber(document.getElementById("sub_total").innerHTML);	
    
    var oShippingSelect = document.getElementById("shipping_select")
    var nShippingPrice  = makeNumber(oShippingSelect.options[oShippingSelect.selectedIndex].getAttribute('price'));	
    
    var oPaymentSelect  = document.getElementById("payment_select")
	var nPaymentPrice   = makeNumber(oPaymentSelect.options[oPaymentSelect.selectedIndex].getAttribute('price'));	
    
	if (isNaN(nSubTotalPrice) || isNaN(nShippingPrice) || isNaN(nPaymentPrice) ) {
		document.getElementById("total_field").innerHTML = makeDecimal("0");
	}else{
		var nOverallTotal = nSubTotalPrice + nShippingPrice + nPaymentPrice;
		document.getElementById("total_field").innerHTML = makeDecimal(nOverallTotal);
	}
}

function TotalProdPrice(iProdId, sFormName){
	var iUnitPrice, iAmount, iTotalProdPrice, iLoop, iSubTotal;
	
	iLoop = parseInt(document.getElementById("loop").value);
	
	iUnitPrice = makeNumber(document.getElementById("unitprice" + iProdId).innerHTML);
	iAmount = parseInt(document.getElementById("amount" + iProdId).value); 
	if (isNaN(iAmount) || (iAmount <= 0)){
		iTotalProdPrice = 0.00;
		if (iLoop <= 1) {
			check_nextstep(false);
		}
	}else{
		iTotalProdPrice = iUnitPrice * iAmount;
		check_nextstep(true);
	}
	document.getElementById("totalprodprice" + iProdId).innerHTML = makeDecimal(iTotalProdPrice);
	
	
	iSubTotal = 0.0;
	for (i=1; i<=iLoop; i++){
		iSubTotal = (iSubTotal + makeNumber(document.getElementById("totalprodprice" + i).innerHTML))
	}
	if(iSubTotal == 0.00) check_nextstep(false);
	document.getElementById("sub_total").innerHTML = makeDecimal(iSubTotal);
	CalculateTotal();
	
	
}

function enablefields(status){

    if (document.getElementById("ship_div"))
    {
	    var ship_table = document.getElementById("ship_div");
	    //Enable field 
	    if (status == true){		
	    	ship_table.style.display = "";		
	    }else{
	    	ship_table.style.display = "none";
	    }
	}
}


function check_nextstep(status){
	var next = document.getElementById("next")
	if (status == true){
		next.disabled = false;
		next.src = 'Images/Webshop_Next.gif';		
	}else{
		next.disabled = true;
		next.src = 'Images/Webshop_Next_Disabled.gif';
	}
}

/*
function make_decimal(price){
	var iPrice, iPos;
	iPrice = price.toFixed(2);
	iPrice = iPrice+"";//convert to string
	iPrice = iPrice.replace(".",",");	
	iPos = (iPrice.indexOf(",") + 1);	
	if((iPrice.length - iPos) == 1) iPrice = iPrice + "0";
	else if(iPos == 0) iPrice = iPrice + ",00"; 
	return iPrice;	
}*/



//returns a number
function makeNumber(sPrice){
	var nNumber;
	sPrice = sPrice+"";
	if(cDecimalSeparator == ",") {
		if (sPrice.indexOf(",") > 0) {
			nNumber = parseFloat(sPrice.replace(",","."));			
		}
		else return (parseFloat(sPrice) + 0.0);
	}
	else  nNumber = (parseFloat(sPrice) + 0.0);
	return nNumber;
}

// this functions makesure that the price has always 2 decimals. most have a . (dot)
function makeDecimal(price){
	var iPrice, iPos;
	var sPrice;
	iPrice = parseFloat(price);		
	iPrice = iPrice.toFixed(2);
	sPrice = iPrice+"";//convert to string	
	if (cDecimalSeparator == ",") sPrice = sPrice.replace(".", cDecimalSeparator);	
	iPos = (sPrice.indexOf(cDecimalSeparator) + 1);	
	if((sPrice.length - iPos) == 1) sPrice = sPrice + "0";
	else if(iPos == 0) sPrice = sPrice + cDecimalSeparator + "00"; 
	return sPrice;	
}