function GetTimeZone() {
   var rightNow = new Date();
   var date1 = new Date(rightNow.getFullYear(), 0, 1, 0, 0, 0, 0);
   var date2 = new Date(rightNow.getFullYear(), 6, 1, 0, 0, 0, 0);
   var temp = date1.toGMTString();
   var date3 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
   var temp = date2.toGMTString();
   var date4 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
   var hoursDiffStdTime = (date1 - date3) / (1000 * 60 * 60);
   var hoursDiffDaylightTime = (date2 - date4) / (1000 * 60 * 60);
   if (hoursDiffDaylightTime == hoursDiffStdTime) { 
      //document.write(hoursDiffStdTime);
      //frmLogin.utc.value = hoursDiffStdTime;
      //frmLogin.dls.value = 0;
     document.getElementById("intUTC").value= hoursDiffStdTime;
     document.getElementById("btDLS").value= 0; 
   } else {
      //document.write(hoursDiffDaylightTime);
      //frmLogin.utc.value = hoursDiffStdTime;
      //frmLogin.dls.value = 1;
      document.getElementById("intUTC").value= hoursDiffStdTime;
      document.getElementById("btDLS").value= 1;   
   }
}