function PopupDocWindow(url, width, height, scrollbar)
{
	var winl = (screen.width - width) / 2;
	var wint = ((screen.height - height) / 2) - 25;
	
	NewWin = window.open(url,"Trike_popup","height=" + height + ",width=" + width + ",top=" + wint + ",left=" + winl + "resizable=1,menubar=0,status=0,titlebar=0,title=0,toolbar=0,copyhistory=0,scrollbars=" + scrollbar);
	NewWin.window.focus();
}