javascript - JQuery live search exact match -

i'm using live search modified run after pressing enter(i have large table , causes text entry lag if done on keyup) , i'm trying find out way make exact search instead of similar. reason being have column store numbers starting 1 on 7000, if type in '1' whole slew of results. i'm new jquery , i've tried play around feel i'm getting no where. , appreciated.

here code:

$('#search').keyup(function(e) {     if (e.keycode == 13) {         $(this).trigger("enterkey");     } });  $("#search").bind("enterkey", function() {     var value = $(this).val();      $("table tr").each(function(index) {         if (index !== 0) {              $row = $(this);              var id = $row.find("td:first").text();              if (id.indexof(value) !== 0) {                 $row.hide();             } else {                 $row.show();             }         }     }); });