function gpopup(URL, winwidth, winheight, scroll) {
		day = new Date();
		id = day.getTime();
		pleft=(screen.width-winwidth)/2;
		ptop=(screen.height-winheight)/2;
		eval("page" + id + " = window.open('"+URL+"', '" + id + "', 'toolbar=0,scrollbars="+scroll+",location=0,statusbar=0,menubar=0,resizable=1,width="+winwidth+",height="+winheight+",left="+pleft+",top="+ptop+"');");
		}