document.getElementById("filterActiveLabel").hidden = false; 
  filter: function() {    if (this._filter.value == "") {      this.clearFilter();      return;    }    this.rebuildView();    document.getElementById("filterActiveLabel").hidden = false;    document.getElementById("clearFilter").disabled = false;  },
5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5459/4c7e84c6f2b62a26b000a38c6b680e1aa71f4335/applications.js/buggy/browser/components/preferences/applications.js