Hai All 

     I am Using in my web Application Multiple menu And Also SubMenus  My Problem Is I was Using JavaScript For My Menu Search Option But My Script Is Not Working Any One Give Some Solution 

This My Script

  var input, filter, ul, li, a, i;

  input = document.getElementById("texvar");

  filter = input.value.toUpperCase();

  ul = document.getElementById("PageLinks");

  li = ul.getElementsByTagName("Submenu");

  for (i = 0; i < li.length; i++) {

    a = li[i].getElementsByTagName("a")[0];

    if (a.innerHTML.toUpperCase().indexOf(filter) > -1) {

      li[i].style.display = "";

    } else {

      li[i].style.display = "none";

    }

  }