function WinOpen(URL, WinName, nWidth, nHeight) {
	if (!(nWidth)) nWidth = 500;
	if (!(nHeight)) nHeight = 350;
	if (!(WinName)) WinName = "";
	window.open(URL, WinName, "resizable=no, titlebar=no, status=no, width="+nWidth+", height="+nHeight+", left="+((screen.width-nWidth) / 2)+", top="+((screen.height-nHeight) / 2));
}
function KeepScroll(obj) {
	if (document.all) 
		obj.href = obj.href + "&sc=" + document.body.scrollTop;
	else
		obj.href = obj.href + "&sc=" + document.documentElement.scrollTop;
}