function openwin(theURL, sz) { 

		hg = 500; 
		wid = 600;	
		lt = ((screen.width/2)-(hg/2));	
		tp = ((screen.height/2)-(wid/2));
		stt = "no";

	
	
	st = "left="+lt+",";
	st = st + "top="+tp+",";
	st = st + "status="+stt+",";
	st = st + "menubar=no,";
	st = st + "width="+wid+",";
	st = st + "height="+hg+",";
	st = st + "resizable=yes,";
	st = st + "scrollbars=yes";
	window.open(theURL,'_blank',st);
}

//  End -->