var isDOM = (document.getElementById ? true : false);
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);
var isNS = navigator.appName == "Netscape";

function getRef(id) {
	if (isDOM) return document.getElementById(id);
	if (isIE4) return document.all[id];
	if (isNS4) return document.layers[id];
}

var scrollerHeight = 88;
var puaseBetweenImages = 3000;
var imageIdx = 0;


function moveRightEdge() {
	var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;

	if (isDOM) {
		yMenuFrom   = parseInt (divMenu.style.top, 10);
		yMenuTo     = (isNS ? window.pageYOffset : document.body.scrollTop)+ 10; 
	}
	timeoutNextCheck = 500;

	if (yMenuFrom != yMenuTo) {
		yOffset = Math.ceil(Math.abs(yMenuTo - yMenuFrom) / 20);
		if (yMenuTo < yMenuFrom)
			yOffset = -yOffset;
		if (isNS4)
			divMenu.top += yOffset;
		else if (isDOM)
			divMenu.style.top = parseInt (divMenu.style.top, 10) + yOffset;
			timeoutNextCheck = 10;
	}
	setTimeout ('moveRightEdge()', timeoutNextCheck);
}

function chatroom()
{
window.open("/chatroom/","Chatroom","height=420, width=560, toolbar=no, menubar=no, scrollbars=no, resizable=no,location=no, status=no");
}
function doChange(product_price) {
					var  farep = product_price;
					var  index;
					var  cartQuantity;
					index = addcart.cartQuantity.selectedIndex;
					cartQuantity = addcart.cartQuantity.options[index].text
					if (cartQuantity<2){addcart.money.value = Math.round(parseFloat(cartQuantity* farep*2)*100)/100 };
					else
					if (cartQuantity<3){addcart.money.value = Math.round(parseFloat(cartQuantity* farep*1.5)*100)/100 };
					else
					if (cartQuantity<4){addcart.money.value = Math.round(parseFloat(cartQuantity* farep*1.4)*100)/100 };
					else
					if (cartQuantity<5){addcart.money.value = Math.round(parseFloat(cartQuantity* farep*1.3)*100)/100 };
					else
					if (cartQuantity<6){addcart.money.value = Math.round(parseFloat(cartQuantity* farep*1.2)*100)/100 };
					else
					if (cartQuantity<10){addcart.money.value = Math.round(parseFloat(cartQuantity* farep*1.1)*100)/100 };
					else
					if (cartQuantity>99){addcart.money.value = Math.round(parseFloat(cartQuantity* farep*0.90)*100)/100 };
					else
					if (cartQuantity>49){addcart.money.value = Math.round(parseFloat(cartQuantity* farep*0.95)*100)/100 };
					else
					if (cartQuantity>19){addcart.money.value = Math.round(parseFloat(cartQuantity* farep*0.98)*100)/100 };
					else
					{addcart.money.value = Math.round(parseFloat(cartQuantity* farep)*100)/100 };
					//addcart.money.value = addcart.cartQuantity.options[index].text * farep;
					return;
				}