function calcPrice(itemnum) {
		var inputbox
		var outputbox
		var qtybox
		

		inputbox = document.getElementById("itemprice" + itemnum);
		outputbox = document.getElementById("itemcost" + itemnum);	
		qtybox = document.getElementById("qty" + itemnum);
		

		if (qtybox.value != "" && IsNumeric(qtybox.value)) {
			outputbox.value = formatAsMoney(parseFloat(inputbox.value)*parseFloat(qtybox.value));
		}
		
		if (qtybox.value=="") {
				outputbox.value = "";
		}
		
		updateTotal();
		return;
	}
	
	function updateTotal() {
		var totalBox
		var outputbox
		var temp
		var temptext
		var total = 0
		var numitemsBox
		var numitems
		
		totalBox = document.getElementById("itemtotal");
		numitemsBox = document.getElementById("numitems");
		numitems = parseInt(numitemsBox.value) + 1;
		for (i=1;i<numitems;i++) {
			outputbox = document.getElementById("itemcost" + i);
			temptext = outputbox.value;
			if (outputbox.value !="" ) {
				temp = parseFloat(outputbox.value);
				total += temp;				
			}		
		}
		totalBox.value = formatAsMoney(total); 
		return;
	}
	
	function IsNumeric(sText) {
	   var ValidChars = "0123456789";
	   var IsNumber=true;
	   var Char;
	 
	   for (i = 0; i < sText.length && IsNumber == true; i++) 
		  { 
		  Char = sText.charAt(i); 
		  if (ValidChars.indexOf(Char) == -1) 
			 {
			 IsNumber = false;
			 }
		  }
	   return IsNumber;	   
	 }

	function formatAsMoney(amt) { 
		amt -= 0; 
		amt = (Math.round(amt*100))/100; 
		return (amt == Math.floor(amt))? amt + '.00' : ( (amt*10 == Math.floor(amt*10))? amt + '0' : amt); 
	} 


	function checkTotal() {
		var totalbox
		totalbox = document.getElementById("itemtotal");
		
		
		if (parseFloat(totalbox.value) > 0) {
			//totalbox.focus();			
			//alert("OK to process");
			document.Form1.submit();		
			
		}
		else {
			alert("Please order at least one item and try again");
			return;		
		}
	}

	function popPreview(imagefile) {
		var sURL
		var w
		var h
		sURL = "poppreview.aspx?img=" + imagefile	;
		w = 200;
		h = 200;
		eval("newwindow=open(sURL,'popupwin','scrollbars=no,toolbar=no,directories=no,menubar=no,resizable=yes,status=no,width=" + w + ",height=" + h + "');")
		return;
	}