function loadCart(){
	Cart.init("cart");
	window.onscroll=function(e) {
		var st = document.body.scrollTop;					
		if (st == 0) {
		    if (window.pageYOffset) st = window.pageYOffset;
		    else st = (document.body.parentElement) ? document.body.parentElement.scrollTop : 0;
		}
		if( st >= 300 ) {
			Cart.setScrolling(true);
		} else {
			Cart.setScrolling(false);
		}
	}
};
var Cart = {
	__cartEl__:null,
	init:function(cartID) {
		Cart.__cartEl__=document.getElementById(cartID);
	},
	setScrolling:function(flag) {
		if( flag == true) Cart.__cartEl__.className="scrolling";
		else Cart.__cartEl__.className="none";
	}
};