function PopupSite(URL, w, h){PopupNoSpacing(URL, w, h, true, true, true);}
function Popup(URL, w, h, doscroll, doresize, showurl){PopupNoSpacing(URL, w+22, h+50, doscroll, doresize, showurl)}
function PopupWhatIsThis(){Popup('whatisthis.htm', 750, 650);}
function PopupRefer(){Popup('referPopup.aspx', 500, 450);}
function PopupNoSpacing(URL, w, h, doscroll, doresize, showurl){
	//alert("it works: " + URL + ", w: " + w + ", h: " + h);
	var sw = screen.width ? screen.width : 800;
	var sh = screen.height ? screen.height : 600;
	doscroll = doscroll ? '1' : '0';
	doresize = doresize ? '1' : '0';
	showurl = showurl ? '1' : '0';
	day = new Date();
	id = day.getTime();
	eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars="+doscroll+",location="+showurl+",statusbar=1,menubar=1,resizable="+doresize+",width="+w+",height="+h+",left = " + ((sw/2)-(w/2)) + ",top = " + ((sh/2)-(h/2)) + "');");
	}