function centerPopup(mypage, myname, w, h, scroll) { 
var winl = (screen.width - w) / 2; 
var wint = (screen.height - h) / 2 -20; 
winprops = 'height='+h+',width='+w+',top='+wint+',left='+winl+',scrollbars='+scroll+',resizable=no,toolbar=no' 
win = window.open(mypage, myname, winprops) 
if (parseInt(navigator.appVersion) >= 4) { win.window.focus(); } 
}

//window.open('/Upfile/captain.htm', '2009 Easter Pairs', 'height=120, width=320, top=0,left=0, toolbar=no, menubar=no, scrollbars=no, resizable=no,location=no, status=no') 
//centerPopup("/Upfile/notice.htm","NOTICE",435,200,"no")