获取和错误(非自然功能），同时在jquery中从页面搜索文本

我正在从页面搜索文本。一切都很好。但是只有一个问题，当用户搜索和它搜索时，还要用amp附加数据。你能告诉我为什么会这样吗？

这是我的小提琴：http://jsfiddle.net/ravi1989/wjLmx/22/

请输入 &，然后单击搜索，再次单击搜索，搜索，接下来查找问题。

function searchAndHighlight(searchTerm, selector) {
    if (searchTerm) {
        //var wholeWordOnly = new RegExp("''g"+searchTerm+"''g","ig"); //matches whole word only
        //var anyCharacter = new RegExp("''g["+searchTerm+"]''g","ig"); //matches any word with any of search chars characters
        var selector = selector || "#realTimeContents"; //use body as selector if none provided
        var searchTermRegEx = new RegExp(searchTerm, "ig");
        var matches = $(selector).text().match(searchTermRegEx);
        if (matches != null && matches.length > 0) {
            $('.highlighted').removeClass('highlighted'); //Remove old search highlights  
            //Remove the previous matches
            $span = $('#realTimeContents span');
            $span.replaceWith($span.html());
            $(selector).html($(selector).html().replace(searchTermRegEx, "<span class='match'>" + searchTerm + "</span>"));
            $('.match:first').addClass('highlighted');
            var i=0;
            $('.next_h').off('click').on('click', function () {
                i++;
                if(i >= $('.match').length)
                    i=0;
                $('.match').removeClass('highlighted');
                $('.match').eq(i).addClass('highlighted');                
            });
            $('.previous_h').off('click').on('click', function () {
                i--;
                if(i < 0)
                    i=$('.match').length-1;
                    $('.match').removeClass('highlighted');
                    $('.match').eq(i).addClass('highlighted');
            });


            if ($('.highlighted:first').length) { //if match found, scroll to where the first one appears
                $(window).scrollTop($('.highlighted:first').position().top);
            }
            return true;
        }
    }
    return false;
}
$(document).on('click', '.searchButtonClickText_h', function (event) {
    $(".highlighted").removeClass("highlighted").removeClass("match");
    if (!searchAndHighlight($('.textSearchvalue_h').val())) {
        alert("No results found");
    }

});