var height=800;

function subwin(url,width) {
	var features="left=0,top=0,scrollbars=yes,resizable=yes,location=yes,menubar=yes,status=no,toolbar=no";
	if (width) {
		features+=",width="+width;
	}
	if (height) {
		if (window.screen.height > height)
			features+=",height="+height;
		else height=window.screen.height;
			features+=",height="+height;
	}
	window.open(url,null,features);
}