jQuery.noConflict();

 jQuery(document).ready(function($){
   $("a[href$='.pdf']").addClass("pdf");
   $("a[href$='.doc']").addClass("doc");
   $("a[href$='.xls']").addClass("xls");
   $("a[href$='.txt']").addClass("txt");
   $("a[href$='.zip']").addClass("zip");
 });

jQuery.fn.extend({
    highlight: function(search, insensitive, hls_class){
      var regex = new RegExp("(<[^>]*>)|(\\b"+ search.replace(/([-.*+?^${}()|[\]\/\\])/g,"\\$1") +")", insensitive ? "ig" : "g");
      return this.html(this.html().replace(regex, function(a, b, c){
        return (a.charAt(0) == "<") ? a : "<strong class=\""+ hls_class +"\">" + c + "</strong>";
      }));
    }
  });
  jQuery(document).ready(function($){
    if(typeof(hls_query) != 'undefined'){
      $("#post-area").highlight(hls_query, 1, "hls");
    }
  });