var nowDate = new Date();
var beginDate = new Date("September 13, 2010 00:00:00");
var endDate = new Date("September 19, 2010 18:00:00");
/*  
var PosX = (screen.width-win_width)/2; 
  var PosY = (screen.Height-win_height)/2; 

alert(PosX );

alert('beginDate='+beginDate);
alert('endDate='+endDate);
*/
if(nowDate >= beginDate && nowDate < endDate){
	window.open('announcement.html',  '','status=no,menubar=no,location=no,directories=no,toolbar=no,scrollbars= yes,resizable=no,width=580px,height=520px,resize=1,scrolling=1,center=1');
//dhtmlwindow.open("OutofServiceNoteCT", "iframe", "OutofServiceNoteCT.htm", "°±¾÷¤½§i", "width=550px,height=480px,resize=1,scrolling=1,center=1", "recal");
}