Inline jQuery search filter

gistfile1.js

$(document).ready(function() {
    // let's make a case insensitive contains selector
    $.extend($.expr[':'], {
        'containsi': function(elem, i, match, array) {
            return (elem.textContent || elem.innerText || '').toLowerCase().indexOf((match[3] || "").toLowerCase()) >= 0;
        }
    });
});

//filter results based on query
function filter(list, selector, filter) {
    if(filter) {
        // hide all and show matching elements
        $(list).hide().filter(function(i) {
            return $(this).find(selector+":containsi(" + filter + ")").length > 0;
        }).show();
    } else {
        $(list).show(); // show all
    }
}