$(document).ready(function(){ 
    var clicked = false;
    $("#keyword").focus(function () {
      if (clicked) {
          return;
      } else {
          clicked = true;
          $("#keyword").val("");
      }
    });

	$("#keyword").autocomplete("ajax-search.php", {
        minChars: 2,
        width: 350,
		max: 8,
		highlight: false,
		scroll: true,
		scrollHeight: 300,
		formatItem: function(data, i, n, value) {
			return "<img src='" + value.split("%~%")[0] + "'/> " + value.split("%~%")[1];
		},
		formatResult: function(data, value) {
			return value.split("%~%")[1];
		}
	});
});