Search within a sharepoint site using Jquery.

<div dir="ltr" style="text-align: left;" trbidi="on">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js" type="text/javascript">
</script>
<script type="text/javascript">
    // QuickSearch v0.1
    // Created by Jan Tielens, http://weblogs.asp.net/jan
    // This sample code is provided on an “as is” basis and without warranty of any kind.
   
    // *** Customizable parameters ***
    var quickSearchConfig = {
        delay: 500,             // time to wait before executing the query (in ms)
        minCharacters: 3,       // minimum nr of characters to enter before search
        scope: "All Sites",     // search scope to use
        numberOfResults: 15,    // number of results to show
        resultsAnimation: 200,  // animation time (in ms) of the search results
        resultAnimation: 0      // animation time (in ms) of individual result (when selected)
    };   
</script>
<style type="text/css">
    .quickSearchResultDivUnselected
    {
        background: white;
        border: 1px solid white;
        margin-left: 2px;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .quickSearchResultDivSelected
    {
        background: #EEEEEE;
        border: 1px solid Gray;
        margin-left: 2px;
        overflow: hidden;
        text-overflow: ellipsis;
    }
</style>
<table border="0" class="ms-sbtable ms-sbtable-ex" id="quickSearchTable"><tbody>
<tr class="ms-sbrow">             <td class="ms-sbcell">
<input alt="Enter search words" class="ms-sbplain" id="quickSearchTextBox" maxlength="200" style="width: 100%;" title="Enter search words" value="" /></td>             <td class="ms-sbgo ms-sbcell" style="width: 14px;">
<img alt="Go Search" src="/_layouts/images/gosearch.gif" style="border-width: 0px;" title="Go Search" /></td>             <td style="width: 1px;">
</td>         </tr>
</tbody> </table>
<div id="quickSearchResults" style="display: none;">
</div>
<script type="text/javascript">
    var quickSearchTimer;
    var quickSearchSelectedDivIndex = -1;
   
    function showResultsDiv(text) {
        var div = $("#quickSearchResults");
        var prevTable = div.prev();
       
        var divCss = {
            "left": prevTable.offset().left,
            "padding": 2,
            "position": "absolute",
            "top": prevTable.offset().top + prevTable.height() + 1,
            "border": "1px solid #7f9db9",
            "width": prevTable.width() - 3,
            "background": "white",
            "max-width": prevTable.width() - 3
            };
                 
        div.css(divCss).append(text).slideDown(quickSearchConfig.resultsAnimation);
    }
   
    $(document).ready(function() {
        $('#quickSearchTextBox').keyup(function(event) {
            var previousSelected = quickSearchSelectedDivIndex;
           
            // catch some keys
            switch(event.keyCode) {
                case 13:    // enter
                    var selectedDiv = $("#quickSearchResults>div:eq(" + quickSearchSelectedDivIndex + ") a");
                    if(selectedDiv.length == 1)
                        window.location = selectedDiv.attr("href");
                    break;
                case 38:    // key up
                    quickSearchSelectedDivIndex--;
                    break;
                case 40:    // key down
                    quickSearchSelectedDivIndex ++;
                    break;
            }
           
            // check bounds
            if(quickSearchSelectedDivIndex != previousSelected) {
                if(quickSearchSelectedDivIndex < 0)
                    quickSearchSelectedDivIndex = 0;
                if(quickSearchSelectedDivIndex >= $("#quickSearchResults>div").length -1)
                    quickSearchSelectedDivIndex = $("#quickSearchResults>div").length - 2;               
            }
           
            // select new div, unselect the previous selected
            if(quickSearchSelectedDivIndex > -1) {
                if(quickSearchSelectedDivIndex != previousSelected) {
                    unSelectDiv( $("#quickSearchResults>div:eq(" + previousSelected + ")"));
                    selectDiv($("#quickSearchResults>div:eq(" + quickSearchSelectedDivIndex + ")"));
                }
            }
           
            // if the query is different from the previous one, search again
            if($('#quickSearchTextBox').data("query") != $('#quickSearchTextBox').val()) {
                if (quickSearchTimer != null) // cancel the delayed event
                    clearTimeout(quickSearchTimer);
                quickSearchTimer = setTimeout(function() { // delay the searching
                        $("#quickSearchResults").fadeOut(200, initSearch);
                    } , quickSearchConfig.delay);
            }
        });            
    });
   
    function unSelectDiv(div) {
        // first stop all animations still in progress
        $("#quickSearchResults>div>div").stop(true,true);
       
        div.removeClass("quickSearchResultDivSelected").addClass("quickSearchResultDivUnselected"); 
        $("#details", div).hide();
    }
   
    function selectDiv(div) {
        div.addClass("quickSearchResultDivSelected");
        $("#details", div).slideDown(quickSearchConfig.resultAnimation);
    }
   
    function initSearch() {
        // first store query in data
        $('#quickSearchTextBox').data("query", $('#quickSearchTextBox').val());
       
        // clear the results
        $("#quickSearchResults").empty();
       
        // start the search
        var query = $("#quickSearchTextBox").val();
        if(query.length >= quickSearchConfig.minCharacters) {
            showResultsDiv("Searching ..."); // display status
            search(query);
        }
    }
   
    function search(query) {
        quickSearchSelectedDivIndex = -1;
        var queryXML =
            "<querypacket xmlns='urn:Microsoft.Search.Query' Revision='1000'>             <query domain='QDomain'>              <supportedformats><format>urn:Microsoft.Search.Response.Document.Document</Format></SupportedFormats>              <context>               <querytext language='en-US' type='STRING' >SCOPE:\"" + quickSearchConfig.scope + "\"" + query + "</QueryText>              </Context>             <sortbyproperties><sortbyproperty name='Rank' direction='Descending' order='1'/></SortByProperties>              <range><startat>1</StartAt><count>" + quickSearchConfig.numberOfResults + "</Count></Range>              <enablestemming>false</EnableStemming>              <trimduplicates>true</TrimDuplicates>              <ignoreallnoisequery>true</IgnoreAllNoiseQuery>              <implicitandbehavior>true</ImplicitAndBehavior>              <includerelevanceresults>true</IncludeRelevanceResults>              <includespecialtermresults>true</IncludeSpecialTermResults>              <includehighconfidenceresults>true</IncludeHighConfidenceResults>             </Query></QueryPacket>";
       
        var soapEnv =
            "<soap:Envelope xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'>               <soap:Body>                 <query xmlns='urn:Microsoft.Search'>                   <queryxml>" + escapeHTML(queryXML) + "</queryXml>                 </Query>               </soap:Body>             </soap:Envelope>";
        $.ajax({
            url: "/_vti_bin/search.asmx",
            type: "POST",
            dataType: "xml",
            data: soapEnv,
            complete: processResult,
            contentType: "text/xml; charset=\"utf-8\""
        });
       
        function processResult(xData, status) {
            var html = "";
            $(xData.responseXML).find("QueryResult").each(function() {
                var divWidh = $("#quickSearchTable").width() - 13;
               
                var x = $("<xml>" + $(this).text() + "</xml>");
                x.find("Document").each(function() {
                    var title = $("Title", $(this)).text();
                    var url = $("Action>LinkUrl", $(this)).text();
                    var description = $("Description", $(this)).text()
                   
                    html +=
                        "<div class='quickSearchResultDivUnselected' style='width:" + divWidh + "px;max-width:" + divWidh +"px'>


                             <a href='" + url + "'>" + $("Title", $(this)).text() + "</a>                             <div style='display:none' id='details' style='margin-left:10px'>


"
                                + description +
                                "
" + url + "                             </div>
</div>
";
                });
                if(x.find("TotalAvailable").text() != "")
                    html += "<div style='text-align:right'>


Total results: " + x.find("TotalAvailable").text() + "</div>
";
                else                       
                    html += "<div style='text-align:right'>


Total results: 0</div>
";
            });
           
            $("#quickSearchResults").empty().append(html);
            $("#quickSearchResults>div>a").hover(
                function() { selectDiv($(this).parent()); },
                function() { unSelectDiv($(this).parent());  }
            );                   
            showResultsDiv();
        }           
    }
   
    function escapeHTML (str) {
       return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
    }
</script></div>