function openOrderForm()  
{
  var cart =window.open(document.location,"_self"); 
  if(navigator.appName == "Netscape")
  {
    cart.focus();
  }
}

function fmtPrice(value)
{   
  amount = Math.round(value*Math.pow(10,2))/Math.pow(10,2);
  amount -= 0;
  return (amount == Math.floor(amount)) ? amount + '.00' : ( (amount*10 == Math.floor(amount*10)) ? amount + '0' : amount);
}

function displaySum(index)
{
  eval("document.basket.sum"+index+".value=fmtPrice("+quantity_array[index]*price_array[index]+")");
  document.basket.formsubtotal.value=fmtPrice(subtotal);
}

function isInt(elm) 
{
    var elmstr = '' + elm; 
    if (elmstr == '')
        return false;
    for (var i = 0; elmstr.length>i; i++)
    {
        if ( "0">elmstr.charAt(i) || elmstr.charAt(i) > "9")
            { return false; }
    }
    return true;
}
function RoundQty(elm)
{
    var elmstr = "" + elm;
    if (elmstr == "")
        return 0;
    DotExist=0;
    DigitAfterDecimal=0;
    for (var i = 0; elmstr.length>i; i++)
    {
        if ( "0">elmstr.charAt(i) || elmstr.charAt(i) > "9")
	{ 
            if ((elmstr.charAt(i) == ".") && (DotExist == 0))
                DotExist = 1;
            else
                return 0; 
        }
        else if (DotExist == 1)
	{
            if (2>DigitAfterDecimal )
                DigitAfterDecimal = DigitAfterDecimal + 1 ;
            else
	    {
                if (elmstr.charAt(i)>="5")
		{
                   var sTmp100 = elmstr.substring(0, i-3) + elmstr.substring(i-2, i);
		   nTmp = Number( sTmp100 ) ;
		   nTmp = nTmp + 1;
	           var sTmp = "" + nTmp;
		   if (2>sTmp.length)
			   sTmp = sTmp.substring(0, sTmp.length - 2) + ".0" + sTmp.substring(sTmp.length - 2, sTmp.length );
		   else
			   sTmp = sTmp.substring(0, sTmp.length - 2) + "." + sTmp.substring(sTmp.length - 2, sTmp.length );
                   return sTmp ;
                }
                else               
                   return Number( elmstr.substring(0, i) );
            }
        }       
    }
    return elm;
}

function updateQuantity(Qty, index, acceptZero, lineNumber, ajaxPath)
{
    if (!acceptZero && (Qty>=10000 || Qty==0))
    {
	alert ("Please enter a valid number that is greater than 0.01 and less than 9999.99!");
	Eval("document.basket.quan"+index+".value=quantity_array[index]");
    }
    else
    {
	$.ajax({ 
		type: "POST",
		cache: false,
		url: ajaxPath + "?dt=" + (new Date().getTime()),
		data: 'bid=' + lineNumber + '&qu=' + parseInt( Qty ),
		dataType: "json",
		success: function(response) {
			var subtotal = 0;
			for ( var i=0; i < arrPrices.length; i++ )
			{
				var sQF = "input[name$='Order_ItemQuantity_"+i+"']";
				var sQF_sub = "input[name$='sum_"+i+"']";
				var lineTotal = parseFloat( arrPrices[i] ) * parseInt( $(sQF).val() );
				$(sQF).val(parseInt($(sQF).val()));
				$(sQF_sub).val(fmtPrice(lineTotal));
				subtotal += lineTotal;
			}
			$("#subtotal").val( fmtPrice(subtotal) );
			if ( subtotal >= 150 )
			{
			    $("#shipping_offer").text( 'This order qualifies for free shipping!' );
			}
			else
			{
			    $("#shipping_offer").text( 'You are $' + fmtPrice(150-subtotal) + ' away from qualifying for free shipping!' );
			}
		},
		error: function (xhr, ajaxOptions, thrownError){
			alert("Error: Failed to update basket.");
			//alert(xhr.responseText);
		}
	});
    }
}