// VERTICAL MENU function
sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

function change_fee(val,total)
{
	var fee;
	if(val == 'Mastercard' || val == 'Visa')
		fee = 2.50;
	else
		fee = 0.00;
	document.getElementById("ext_fee").value = fee;
	document.getElementById("amount").value = total + fee;
	document.getElementById("amount_show").innerHTML = (total + fee).toFixed(2);
}