var xmlHttp

var curr_action;

function get_activity_details(str,action)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }
  curr_action = action
  
switch (action){
	case "get_activity_details":
		var url="libs/ajax_getActivity.php";
		url=url+"?action="+action;
		url=url+"&activity_id="+str;
		sendRequest(url);
	break;
}

}

function sendRequest(url){
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);

}

function stateChanged() 
{ 
if (xmlHttp.readyState==4)
{
	switch(curr_action){
	
		default:
			var xmlDoc=xmlHttp.responseXML.documentElement;
			
			
			document.getElementById("activity_description").innerHTML=
			xmlDoc.getElementsByTagName("activity_description")[0].childNodes[0].nodeValue;

			document.getElementById("activity_title").innerHTML=
			xmlDoc.getElementsByTagName("activity_title")[0].childNodes[0].nodeValue;
			
			
			
			
		break;
	}

}
}


function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}