function showTip(e, imgProd) {
	var oDiv = document.getElementById(imgProd);
	var posx = 0;
	var posy = 0;
	if (!e) var e = window.event;
	if (e.pageX || e.pageY) 	{
		posx = e.pageX;
		posy = e.pageY;
	}
	else if (e.clientX || e.clientY) 	{
		posx = e.clientX + document.body.scrollLeft
			+ document.documentElement.scrollLeft;
		posy = e.clientY + document.body.scrollTop
			+ document.documentElement.scrollTop;
	}
	// posx and posy contain the mouse position relative to the document
	posx = posx + 50;
	posy = posy - 100;
	oDiv.style.left = posx + 'px';
	oDiv.style.top = posy + 'px';
	
	oDiv.style.visibility = "visible";
}
	
function hideTip(oEvent, imgProd) {
	var oDiv = document.getElementById(imgProd);
	oDiv.style.visibility = "hidden";
}