/**
 SAL - Simple Ajax Lib. 23-Sep-2005
 by Nigel Liefrink
 Email: leafrink@hotmail.com
 */

var debug = false;
/**
 Browser Compatability function.
 Returns the correct XMLHttpRequest depending on the current browser.
 */
function GetXmlHttp() {	
  var xmlhttp = false;
  
  if (window.XMLHttpRequest) {
    xmlhttp = new XMLHttpRequest();
  }
  else if (window.ActiveXObject)// code for IE
  {
    try {
      xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    } 
    catch (e) {
      try {
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (E) {
        xmlhttp=false;
      }
    }
  }
  return xmlhttp;
}


/**
 <summary>
 Gets the response stream from the passed url, and then calls the callbackFuntion passing the response and the div_ids.
 </summary>
 <param name="url">The url to make the request to get the response data.</param>
 <param name="callbackFunction">The function to call after the response has been recieved. the response <b>must</b> always be the first argument to the function.</param>
 <param name="params"> (optional) Any other parameters you want to pass to the functions. (Note: only constants/strings/globals can be passed as params, most variables will be out of scope.) </param>
 </summary>
 <example>
 <code>
 PassAjaxResponseToFunction('?getsomehtml=1', 'FunctionToHandleTheResponse', "\'div1\',\'div2\',\'div3\'');
 
 function FunctionToHandleTheResponse(response, d1, d2, d3){
 var data = response.split(';');
 document.getElementById(d1).innerHTML = data[0];
 document.getElementById(d2).innerHTML = data[1];
 document.getElementById(d3).innerHTML = data[2];
 }
 </code>
 </example>
 */
function PassAjaxResponseToFunction(url, callbackFunction, params) {		
  if(debug) {
    alert(params);
  }
  var xmlhttp = new GetXmlHttp();
  //now we got the XmlHttpRequest object, send the request.
  if (xmlhttp) {
    xmlhttp.onreadystatechange = function () {
      if (xmlhttp && xmlhttp.readyState==4) {//we got something back..
        if (xmlhttp.status==200) {
          var response = xmlhttp.responseText;
          var functionToCall = callbackFunction+'(response,'+params+')';
          if(debug) {
            alert(response);
            alert(functionToCall);
          }
          eval(functionToCall);
        } 
        else if(debug) {
          document.write(xmlhttp.responseText);
        }
      }
    }
    xmlhttp.open("GET",url,true);
    xmlhttp.send(null);
  }
}


/**
 ///<summary>
 ///Sets the innerHTML property of obj_id with the response from the passed url./
 ///</summary>
 ///<param name="url">The url to make the request to get the response data.</param>
 ///<param name="obj_id">The object or the id of the object to set the innerHTML for.</param>
 */

function SetInnerHTMLFromAjaxResponse(url, obj_id) {		
  var xmlhttp = new GetXmlHttp();
  //now we got the XmlHttpRequest object, send the request.
  if (xmlhttp) {
    xmlhttp.onreadystatechange = function () {
      if (xmlhttp && xmlhttp.readyState==4) {//we got something back..
        if(debug) alert(xmlhttp.status);
        if (xmlhttp.status==200) {
          if(debug){
            alert(xmlhttp.responseText);
          }
          if(typeof obj_id == 'object'){
            obj_id.innerHTML = xmlhttp.responseText;
          } else {
            document.getElementById(obj_id).innerHTML = xmlhttp.responseText;
          }
        } else if(debug){
          document.Write(xmlhttp.responseText);
        }
      }
    }
    xmlhttp.open("GET",url,true);
    xmlhttp.send(null);
  }
}

function SendAjaxAction(url) {		
  var xmlhttp = new GetXmlHttp();
  //now we got the XmlHttpRequest object, send the request.
  if (xmlhttp) {
    xmlhttp.onreadystatechange = function () {
      if (xmlhttp && xmlhttp.readyState==4) {//we got something back..
        if(debug) alert(xmlhttp.status);
        if (xmlhttp.status==200) {
          if(debug){
            alert(xmlhttp.responseText);
          }
        } else if(debug){
          document.Write(xmlhttp.responseText);
        }
      }
    }
    xmlhttp.open("GET",url,true);
    xmlhttp.send(null);
  }
}