//<script>
  function submit_form(){

      var DP       = document.getElementById( 'DP' );
      var terms    = document.getElementById( 'terms' );
      var msisdn   = document.getElementById( 'msisdn' );
      var message  = document.getElementById( 'message' );
      var j4d_form = document.getElementById( '4d_form' );
      var prefix   = document.getElementById( 'PREFIX' );
	  var err_message1 = "*Mobile numbers format is incorrect. Please enter again.";
      var err_message2 = "*Please read the Terms and Conditions";
      var err_message3 = "*Please enter your mobile numbers.";
	  var err_message4= "*Please check the Mobile numbers format. Eg: 1255544444";
	

      with ( j4d_form )
          {
                if(msisdn.value==null||msisdn.value==""){message.innerHTML=err_message3;msisdn.focus();return false;}
				if(msisdn.value.substr(0,1)==0 || msisdn.value.substr(0,2)==60){message.innerHTML=err_message4;return false;}
                if(!terms.checked){message.innerHTML=err_message2;return false;}
                if(msisdn.value.length<9){message.innerHTML=err_message1;return false;}
          }

      var strLocation = "common/validateForm.php?msisdn="+msisdn.value+"&PREFIX="+prefix.value;
      if(DP != 0){ strLocation = strLocation+"&DP="+DP.value; } // adding DP to param
      setTimeout(function(){window.location = strLocation;},10); // IE 6 BUGs

  }

  function swapImage( id,imagePath ){
      var imagePath,id;
      document.getElementById(id).src = imagePath;
  }

  function checkKey(){
      return SELECTED;
  }

  function mouseOver( id ){
      var id;
      if( id != SELECTED ){
         swapImage( id,IMAGE_PATH+"over_on_"+id+IMAGE_EXT );
      }
  }

  function mouseOut( id ){
      var id;
      if( id != SELECTED ){
         swapImage( id,IMAGE_PATH+"on_"+id+IMAGE_EXT );
      }
  }

  function selectedKey( keyword ){
      var keyword;
      if( SELECTED != keyword ){
          swapImage( TAG_ID_JACKPOT,JACKPOT_IMAGE_PATH+"on_"+keyword+IMAGE_EXT );
          swapImage( keyword,IMAGE_PATH+"hit_on_"+keyword+IMAGE_EXT );
          swapImage( SELECTED,IMAGE_PATH+"on_"+SELECTED+IMAGE_EXT );
          SELECTED = keyword;
          document.getElementById( 'PREFIX' ).value = SELECTED;
      }
  }