Function for searching the text of some elements and hiding elements that don't match the search terms. Prerequisites: jQuery, and a CSS class 'visible' that allows your elements to display (this is then toggled on/off)

gistfile1.js

function FilterResults(query) {

  // Remove whitespace.
  query = $.trim(query);

  // Add an 'OR' for regex syntax.
  query = query.replace(/ /gi '|');
  
  $('selector for each element to search').each(function () {
    
    // Search the text of the element with a regex.
    ($(this).text().search(new RegExp(query, "i")) < 0) ? 
    
       // If this element doesn't match the regex, hide it.
       $(this).hide().removeClass('visible') : 
       
       // Otherwise show it.
       $(this).show().addClass('visible');
  });

}