rem: else this.index = this.entryCcount-1; 
add: else this.index = this.entryCount-1; 
context:   markPrevious: function() {    if(this.index > 0) this.index--      else this.index = this.entryCcount-1;  },
meta: 1035	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1035/7d101d58400acaff232091485c8e140f0a37cbaf/controls.js/buggy/actionpack/lib/action_view/helpers/javascripts/controls.js