ns4 = (document.layers) ? true:false;
	ie4 = (document.all) ? true:false;
	ng5 = (document.getElementById) ? true:false;

	var mousex = 0;
	var mousey = 0;

	window.document.onmousemove = getMousePos;

	function getMousePos(e)
	{
		if(ie4)
		{
			mousex = event.clientX + document.body.scrollLeft;
			mousey = event.clientY + document.body.scrollTop;

		}
		else
		{
			mousex = e.pageX;
			mousey = e.pageY;
		}

		if (mousex <= 0) {mousex = 0};
		if (mousey <= 0) {mousey = 0} ;  

		return true;
	}

	function setImage(idImage,url)
	{
		if (ng5)
		{
			document.getElementById(idImage).src = url;
		}
		else if (ie4)
		{
			eval("document.all." + idImage + ".src = \""+ url + "\" ;");
		}
	}
	
	function getImage(idImage)
	{
		if (ng5)
		{
			return document.getElementById(idImage).src;
		}
		else if (ie4)
		{
			eval("return document.all." + idImage + ".src;");
		}
	}