var UPGRADE_JS = 2;

function updateextralistings( isonsubmit )
	{
	if ( document.renewform.M_is_loggedin.value ==1)
		{
		var extratot = parseFloat(document.renewform.M_extralistings.selectedIndex*20);
		if ( document.renewform.M_extralistings.selectedIndex == 0 )
			{
			if ( isonsubmit )
				{
				alert('Please select how many extra listings you wish to purchase');
				}
			document.renewform.amount.value=0;
			return false;
			}
		else
			{
			document.renewform.amount.value=makeprice(extratot);
			document.renewform.desc.value = document.renewform.M_extralistings.selectedIndex + " extra bold listings";
			return true;
			}
		}
	}
function updatetotal() 
	{
	if ( document.renewform.M_is_loggedin.value ==1)
		{
		var discountpc= 0;
		var discount = 0;
		var extratot = 0;
		var subtot =0;
		var grandtotal =0;
		for (var i=0; i<document.renewform.M_prodprice.length; i++)
			{
			if ( document.renewform.M_prodprice[i].checked )
				{
				subtot = parseFloat(document.renewform.M_prodprice[i].value);
				}
			}
		if ( document.renewform.proupgrade.value ==1)
			{
			if ( !document.renewform.M_prodprice[3].checked )
				{
				if ( document.renewform.M_extralistings.selectedIndex!=0 )
					{
					alert("Extra listings only available for 1 year option");
					document.renewform.M_extralistings.selectedIndex=0;
					}
				document.renewform.M_extralistings.disabled=true;
				}
			else
				{
				document.renewform.M_extralistings.disabled=false;
				}
			// is pro upgrade form so look for extra listings too!
			extratot = parseFloat(document.renewform.M_extralistings.selectedIndex*20);
			//alert( document.renewform.M_extralistings.selectedIndex );
			//alert( document.renewform.M_extralistings.selectedIndex*20);
			document.renewform.extralistingscost.value = extratot;
			}
		subtot = subtot+extratot;
		// discount
		discountpc = document.renewform.M_discount.value;
		grandtotal = subtot;
		if ( discountpc )
			{
			discount = discountpc/100;
			grandtotal = subtot-(subtot*discount);
			}
		var refundamount = document.renewform.M_refund.value;
		if ( refundamount )
			{
			grandtotal = grandtotal - refundamount;
			}
		document.renewform.amount.value=makeprice(grandtotal);
		}

	}