var xmlHttp
function checkInbox(id)
{ 
    	xmlHttp=GetXmlHttpObjectCheckInbox()
	if (xmlHttp==null)
	 {
		 alert ("Browser does not support HTTP Request")
		 return
	 }
    
    
	var url="../zapitadmin/checkinbox.php";
	url = url + "?i=" + id;
    url = url + "&sid=" + Math.random();
	xmlHttp.onreadystatechange=stateChangedCheckInbox; 
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);

}

//--------------------------------------------------------------------------------------------
var timerid2
function stateChangedCheckInbox() 
{ 
     if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
     { 
    	 var retval=xmlHttp.responseText                // output1 is id of span element used to display output echo coming from php file
         if(retval!="")
         {
            
            var referenceToalertbox1 = document.getElementById("alertbox1");                    // returns reference to passed id as per w3c standards
            referenceToalertbox1.style.display="inline";
            
            
            timerid2 = setTimeout("ListMessages()",10000);
            //var referenceToalerttext = document.getElementById("alerttext");                    // returns reference to passed id as per w3c standards
            //if(document.all)
            //{
              //   referenceToalerttext.innerText=retval;
            //} 
            //else
            //{
              //  referenceToalerttext.textContent=retval;
            //}

         }
     } 
}
//------------------------------------------------------------------------------
function GetXmlHttpObjectCheckInbox()
{
    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;



}
//-----------------------------------------------------------------------------------
function DismissAlert()
{
    clearTimeout(timerid);
    var referenceToalertbox1 = document.getElementById("alertbox1");                    // returns reference to passed id as per w3c standards
    referenceToalertbox1.style.display="none";
}
//-----------------------------------------------------------------------------------
function ListMessages()
{
    window.location.href="../index.php?action=inbox";
    clearTimeout(timerid2);
}