function popup_page(mypage, myname, width, height, scroll, status) {
  var win_ie_ver = parseFloat(navigator.appVersion.split("MSIE")[1]);
  if (navigator.userAgent.indexOf('Mac')        >= 0) { win_ie_ver = false; }
  if (navigator.userAgent.indexOf('Windows CE') >= 0) { win_ie_ver = false; }
  if (navigator.userAgent.indexOf('Opera')      >= 0) { win_ie_ver = false; }
  if (win_ie_ver >= 4.0) 							  { win_ie_ver = true; }

    var win = null;
	var winl = (screen.width-width)/2;
    var wint = (screen.height-height)/2;
    var settings  ='height='+height+',';
    settings +='width='+width+',';
    settings +='top='+wint+',';
    settings +='left='+winl+',';
    settings +='scrollbars='+scroll+',';
    settings +='resizable=yes';
    win=window.open(mypage,myname,settings);
    if(parseInt(navigator.appVersion) >= 4){win.window.focus();} 
}