function opencleanwindow(url, name, width, height) {
	if (name == "") { name = "cleanwindow"; }
	if (width == "") { width = 800; }
	if (height == "") { height = 400; }
	window.open(url,name,'width=' + width + ',height=' + height + ',toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,copyhistory=no,resizable=yes');
}