// Javascript Document

// This function returns Internet Explorer's major version number,
// or 0 for others. It works by finding the "MSIE " string and
// extracting the version number following the space, up to the decimal
// point, ignoring the minor version number
   function msieversion()
   {
      var ua = window.navigator.userAgent;
      var msie = ua.indexOf("MSIE ");

      if ( msie > 0 )      // If Internet Explorer, return version number
         return parseInt (ua.substring (msie+5, ua.indexOf (".", msie )))
      else                 // If another browser, return 0
         return 0

   }
   var iever= msieversion();