// for manipulating orders
var orderPricing = {
	price: 0,
	itemCount: 0,
	displayObj: new Object(),
	displayTotal: function() {
		var displayPrice = this.price * this.itemCount;
		this.displayObj.innerHTML = formatter.formatCurrency(displayPrice);
	},
	setItemPrice: function(price) {
		this.price = parseFloat(price);
		this.displayTotal();
	},
	setDisplayObj: function(obj) {
		this.displayObj = obj;
	},
	calcOrderTotal: function(curObj) {
		if (curObj.checked == true) {
			this.itemCount += 1;
		}
		else {
			this.itemCount -= 1;
			if (this.itemCount <= 0) {
				this.itemCount = 0;
			}
		}
		this.displayTotal();
	}
}

var formatter = {
	formatCurrency: function(num) {
		num = num.toString().replace(/\$|\,/g,'');
		if(isNaN(num))
		num = "0";
		sign = (num == (num = Math.abs(num)));
		num = Math.floor(num*100+0.50000000001);
		cents = num%100;
		num = Math.floor(num/100).toString();
		if(cents<10)
		cents = "0" + cents;
		for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
		num = num.substring(0,num.length-(4*i+3))+','+
		num.substring(num.length-(4*i+3));
		return (((sign)?'':'-') + '$' + num + '.' + cents);
	}
}


var sfHover = function(rootid) {
	var sfEls = document.getElementById(rootid).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"), "");
		}
	}
}
var sfHoverWrap = function(){
	sfHover('nav');
	sfHover('leftnav');
}
if (window.attachEvent) window.attachEvent("onload", sfHoverWrap);