jQuery.fn.liveUpdate=function(list){list=jQuery(list);if(list.length){var rows=list.children('li'),cache=rows.map(function(){return this.innerHTML.toLowerCase();});this.keyup(filter).keyup().parents('form').submit(function(){return false;});}return this;function filter(){var term=jQuery.trim(jQuery(this).val().toLowerCase()),scores=[];if(!term){rows.show();}else{rows.hide();cache.each(function(i){var score=this.score(term);if(score>0){scores.push([score,i]);}});jQuery.each(scores.sort(function(a,b){return b[0]-a[0];}),function(){jQuery(rows[this[1]]).show();});}}};