function openWin(pagename){
		var sr_h = 600;
		var sr_w = 760;
		var sc_left = (screen.width/2) - sr_w/2;
		var sc_top = (screen.height/2) - sr_h/2;		
		microsite_window=window.open(pagename,'microsite_window','toolbar=no,location=no,borders=no,directories=no,status=no,menubar=no,scrollbars=no,top='+sc_top+',left='+sc_left+',resizable=no,width='+sr_w+',height='+sr_h)
		microsite_window.focus();
	}