function popup(url, popW, popH) {
	var w = 1024, h = 768;

	//if (document.all || document.layers) {
	   w = screen.availWidth;
	   h = screen.availHeight;
	//}
	
	//var popW = 350, popH = 150;
	
	var leftPos = (w-popW)/2, topPos = (h-popH)/2;

	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(url, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width="+popW+",height="+popH+",left="+leftPos+",top="+topPos+"');");
}