/*
* 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" 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" 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
  document.getElementById("wide_ad_unit").style.backgroundColor ='#ddf8cc';
  document.getElementById("narrow_ad_unit").style.backgroundColor = '#e5ecf9';
  
  document.getElementById("wide_ad_unit").innerHTML = wideAds;
  document.getElementById("narrow_ad_unit").innerHTML = narrowAds;
  
  
}