function initProd()
{
	var navRoot = document.getElementById("product-image");
	var _img = navRoot.getElementsByTagName("img");
	for (var i=0; i<_img.length; i++)
	{
		_width = _img[i].offsetWidth;
		_img[i].style.margin = "0 0 0 -"+ _width/2 + "px";
	}
		navRoot.onmouseover = function()
		{
			this.className = "hover";
		}
		navRoot.onmouseout = function()
		{
			this.className = "";
		}
}

if (window.addEventListener)
	window.addEventListener("load", initProd, false);
else if (window.attachEvent)
	window.attachEvent("onload", initProd);