/*
* This function retrieves the search query from the URL.
*/

function GetParam(name)
{
    var match = new RegExp(name + "=([^&]+)[&]","i").exec(location.search);
    if (match==null)
    {
        match = new RegExp(name + "=([^&]+)","i").exec(location.search);
    }

    if (match==null)
    {
        return null;
    }

    match = match + "";
    result = match.split(",");
    return result[1];
}


/*
 * This function is required. It processes the google_ads JavaScript object,
 * which contains AFS ads relevant to the user's search query. The name of
 * this function <i>must</i> be <b>google_afs_request_done</b>. If this
 * function is not named correctly, your page will not display AFS ads.
 */

function google_afs_request_done(google_ads)
{
    /*
     * Verify that there are actually ads to display.
     */
    var google_num_ads = google_ads.length;
    if (google_num_ads <= 0)
    {
        return;
    }

    var wideAds = "";   // wide ad unit html text
    var narrowAds = "";   // narrow ad unit html text

    for(i = 0; i < google_num_ads; i++)
    {
        if (google_ads[i].type=="text/wide")
        {
            // render a wide ad
            wideAds+='<a style="text-decoration:none" target="_blank" onmouseover="javascript:window.status=\'' +
                    google_ads[i].url + '\';return true;" ' +
                    'onmouseout="javascript:window.status=\'\';return true;" ' +
                    'href="' + google_ads[i].url + '">' +

                    '<span class="ad_line1">' + google_ads[i].line1 + '</span></a><br>' +

                    '<span class="ad_text">' + google_ads[i].line2 + '</span><br>' +

                    '<a style="text-decoration:none" target="_blank" onmouseover="javascript:window.status=\'' +
                    google_ads[i].url + '\';return true;" ' +
                    'onmouseout="javascript:window.status=\'\';return true;" ' +
                    'href="' + google_ads[i].url + '">' +

                    '<span class="ad_url">' + google_ads[i].visible_url + '</span><br><br></a>';
        }

        else
        {
            // render a narrow ad
            narrowAds+='<a style="text-decoration:none" onmouseover="javascript:window.status=\'' +
                    google_ads[i].url + '\';return true;" ' +
                    'onmouseout="javascript:window.status=\'\';return true;" ' +
                    'href="' + google_ads[i].url + '">' +

                    '<span class="ad_line1">' + google_ads[i].line1 + '</span></a><br>' +

                    '<span class="ad_text">' + google_ads[i].line2 + '</span><br>' +

                    '<span class="ad_text">' + google_ads[i].line3 + '</span><br>' +

                    '<a style="text-decoration:none" onmouseover="javascript:window.status=\'' +
                    google_ads[i].url + '\';return true;" ' +
                    'onmouseout="javascript:window.status=\'\';return true;" ' +
                    'href="' + google_ads[i].url + '">' +

                    '<span class="ad_url">' + google_ads[i].visible_url + '</span><br><br></a>';
        }
    }

    if (narrowAds != "")
    {
        narrowAds = '<a style="text-decoration:none" ' +
                    'href="http://services.google.com/feedback/online_hws_feedback">' +
                    '<span class="ad_header" style="text-align:left">Ads by Google</span><br><br></a>' + narrowAds;
    }

    if (wideAds != "")
    {
        wideAds = '<a style="text-decoration:none" ' +
                  'href="http://services.google.com/feedback/online_hws_feedback">' +
                  '<span class="ad_header" style="text-align:left">Ads by Google</span><br><br></a>' + wideAds;
    }

    // Write HTML for wide and narrow ads to the proper <div> elements
    if(document.getElementById("wide_ad_unit")) {
        document.getElementById("wide_ad_unit").innerHTML = wideAds;
    }
    if(document.getElementById("narrow_ad_unit")) {
        document.getElementById("narrow_ad_unit").innerHTML = narrowAds;
    }
}

    google_afs_query = GetParam('q');
    window.google_afs_query = GetParam('q');
// google_afs_ie = 'utf8'; // select input encoding scheme
// google_afs_oe = 'utf8'; // select output encoding scheme