/*******************************************************************************
*                        ______________________________________________________
                        /������������������������������������������������������\
                        |     COMMON FUNCTION FOR IMPLEMENTATION OF AJAX           |
                        |                                                      |
                        |                       Developed By : Sameer Pal Singh                    |
                        |                       Created on   : 8/7/2006 3:58 PM                    |
                        |                                                                                                          |
                        |                       E-mail me :                                |
                        |                               - 'sameers@e-lixirweb.com'                 |
                        |                                                      |
                        \______________________________________________________/
                         ������������������������������������������������������
*
* The "options" parameter is an anonymous object which includes the following
* available options:
*
* params:    Parameters for the requested url in the format p1=1&p2=0&p3=2
* meth:      The request method. Can be "get" or "post". Default is "post".
* async:     Toggles asynchronous mode. Default is true.
* startfunc: A function or list of functions to be called before the AJAX
*            request is made. A list of functions must be separated by the
*            semi-colon like this: "showLoad(); animateText(); hideDiv('divname')".
*            You can pass parameters into the functions.
* endfunc:   A function or list of functions to be called after a successful
*            AJAX request. Uses the same format as "startfunc".
* errorfunc: A function or list of functions to be called when the AJAX request
*            is unsuccessful. Uses the same format as "startfunc".
*
* Returns true on success and false on failure.
*
* Example Usage:
*
  callAjax( "rightdiv", "getData.php", {
    params:"id=12&name=sameer",
    meth:"post",
    async:true,
    startfunc:"elemOn('loading')",
    endfunc:"elemOff('loading'); elemOn('rightdiv')",
    errorfunc:"ajaxError()" }
  );

*/

function callAjax( elemid, url, options )
{
    //alert("callAjax elemid: " + elemid);
  var params = options.params || "";
  var meth = options.meth || "post";
  var async = options.mode || true;
  var startfunc = options.startfunc || "";
  var endfunc = options.endfunc || "";
  var errorfunc = options.errorfunc || "";

  if( startfunc != "" )
    eval( startfunc );

  var url_with_param = url+( params != "" ? "?"+params : "" );

  loadXMLDoc_rand();
//----------------------------------------------------------------
        var xmlhttp_rand
        function loadXMLDoc_rand()
        {

                // code for Mozilla, etc.
                if (window.XMLHttpRequest)
                  {
                          xmlhttp_rand=new XMLHttpRequest()
                          xmlhttp_rand.onreadystatechange=xmlhttpChange_rand
                      if(meth=="post")
              {
                        xmlhttp_rand.open(meth,url,async)//xmlhttp_rand.open(meth,url_with_param,async)
                        xmlhttp_rand.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=ISO-8859-1");//UTF-8

                        xmlhttp_rand.send(params)//xmlhttp_rand.send(null)
              }
              else
              {
                        xmlhttp_rand.open(meth,url_with_param,async)
                    xmlhttp_rand.send(null)
              }
                  }
                // code for IE
                else if (window.ActiveXObject)
                  {
                        //alert(1);
                        xmlhttp_rand=new ActiveXObject("Microsoft.XMLHTTP")
                        if (xmlhttp_rand)
                        {
                xmlhttp_rand.onreadystatechange=xmlhttpChange_rand
                if(meth=="post")
                {
                        xmlhttp_rand.open(meth,url,async);
                        xmlhttp_rand.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
                        xmlhttp_rand.send(params);
                }
                else
                {
                    xmlhttp_rand.open(meth,url_with_param,async);
                    xmlhttp_rand.send(null);
                }
                                return false;
                        }
            else
            {
                  xmlhttp_rand=new ActiveXObject("Msxml2.XMLHTTP");
                  if (xmlhttp_rand)
                          {
                            xmlhttp_rand.onreadystatechange=xmlhttpChange_rand
                            if(meth=="post")
                            {
                                xmlhttp_rand.open(meth,url,async);
                                xmlhttp_rand.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
                                xmlhttp_rand.send(params);
                            }
                            else
                            {
                                xmlhttp_rand.open(meth,url_with_param,async);
                                xmlhttp_rand.send(null);
                            }
                            return false;
                      }
                  else
                      {
                          //alert(3);
                            alert( "Your browser cannot perform the requested action. "+
                                 "Either your security settings are too high or your "+
                                 "browser is outdated. Try the newest version of "+
                                 "Internet Explorer or Mozilla Firefox." );
                            return false;
                      }
            }
                  }
        }

        function xmlhttpChange_rand()
        {
        // if xmlhttp shows "loaded"
        if (xmlhttp_rand.readyState==4)
          {

                  if (xmlhttp_rand.status==200)
                        {

                         var objXML = xmlhttp_rand.responseXML;
                         var objXML1 = xmlhttp_rand.responseText;
                         //alert(objXML1);
                         if(elemid != "")
                         {
						 	//alert(elemid);
							if (objXML1 != "") {
								document.getElementById(elemid).innerHTML = objXML1;
							}
                         }
                         if( endfunc != "" )
                                eval( endfunc );
                  }
                  else
                        {
                                //alert("Problem retrieving XML data")
                                if( endfunc != "" )
                                        eval( endfunc );
                          if( errorfunc != "" )
                                        eval( errorfunc );
                                  return false;
                        }
                }
        }
}
//END OF AJAX FUNCTIONS.