Email Autocomplete

Talk is cheep, show u the code

<script type="text/javascript">
$(document).ready(function(){
  var availableTags = [
		"163.com",
		"qq.com",
	  "gmail.com",      
	  "126.com", 
	  "sohu.com",
	  "sina.com",
	  "sina.cn",
	  "yahoo.com",
	  "hotmail.com",
	  "me.com",  
	];
	function extractLast( val ) {
	  if (val.indexOf("@")!=-1){
	      var tmp=val.split("@");
	      console.log(tmp[tmp.length-1]);
	      return tmp[tmp.length-1];
	  }
	  console.log("returning empty");
	  return "";
	}

	$( "#xlEmail" )
	  // don't navigate away from the field on tab when selecting an item
	  .bind( "keydown", function( event ) {
      if ( event.keyCode === $.ui.keyCode.TAB ) {
        event.preventDefault();
      }
	  })
	  .autocomplete({
      minLength: 1,
      source: function( request, response ) {
        var mail = extractLast(request.term);
        if(mail.length<1){return;}
        var matcher = new RegExp( "^" + mail, "i" );
        response( $.grep( availableTags, function( item ){        	
          return matcher.test( item );
        }));
       },
      focus: function(event, ui) {
        // prevent value inserted on focus
        $(".ui-helper-hidden-accessible").hide();
				event.preventDefault();
        return false;
      },
      select: function( event, ui ) {
        var terms = this.value.split(", ");
        // remove the current input
        var ml=terms[terms.length-1].split("@")[0];
        terms.pop();
        // add the selected item
        terms.push( ml+"@"+ui.item.value );
        // add placeholder to get the comma-and-space at the end
        terms.push( "" );
        this.value = terms.join( "" );
        return false;
      }
      ,messages: {
	      noResults: '',
	      results: function() {}
	    }
	  }
	);
});
</script>