function checkrequired( which ) {
  var pass = true;

  if ( document.images ) {
      for ( i = 0;i < which.length;i++ ) {
          var tempobj = which.elements[ i ];

          if ( tempobj.name.substring( 0, 8 ) == "required" ) {
              if ( ( ( tempobj.type == "text" || tempobj.type == "textarea" ) &&
                     tempobj.value == "" ) || ( tempobj.type.toString().charAt( 0 ) == "s" &&
                                                tempobj.selectedIndex == 0 ) ) {
                  pass = false;
                  break;
                }
            }
        }
    }

  if ( !pass ) {
      shortFieldName = tempobj.name.substring( 8, 30 ).toUpperCase();
      alert( "Please make sure the " + shortFieldName + " field was properly completed." );
      return false;
    }
  else
    return true;
}