function LoadPage(page,usediv) {
         // Set up request varible
         try {xmlhttp = window.XMLHttpRequest?new XMLHttpRequest(): new ActiveXObject("Microsoft.XMLHTTP");}  catch (e) { alert("Error: Could not load page.");}
         //Show page is loading
         document.getElementById(usediv).innerHTML = '<img src="img/loading.gif"> Searching...';
         //scroll to top
         scroll(0,0);
         //send data
         xmlhttp.onreadystatechange = function(){
                 //Check page is completed and there were no problems.
                 if ((xmlhttp.readyState == 4) && (xmlhttp.status == 200)) {
                        //Write data returned to page
                        document.getElementById(usediv).innerHTML = xmlhttp.responseText;
                 }
         }
         xmlhttp.open("GET", page);
         xmlhttp.send(null);
         //Stop any link loading normaly
         return false;
}

function addEngine(name, ext)
{
  if ((typeof window.sidebar == "object") && (typeof window.sidebar.addSearchEngine == "function")) {
    window.sidebar.addSearchEngine(
      "http://mycroft.mozdev.org/external.php/" + name + ".src",
      "http://mycroft.mozdev.org/external.php/" + name + "."+ ext, "", "");
  } else {
    alert("You will need a browser which supports Sherlock to install this plugin.");
  }
}

function addOpenSearch(name,ext,meth)
{
  if ((typeof window.external == "object") && ((typeof window.external.AddSearchProvider == "unknown") || (typeof window.external.AddSearchProvider == "function"))) {
    if ((typeof window.external.AddSearchProvider == "unknown") && meth == "p") {
      alert("This plugin uses POST which is not currently supported by Internet Explorer's implementation of OpenSearch.");
    } else {
      window.external.AddSearchProvider(
        "http://mycroft.mozdev.org/externalos.php/" + name + ".xml");
    }
  } else {
    alert("You will need a browser which supports OpenSearch to install this plugin.");
  }
}