var http13_request = false;
function makePOSTRequest13(url, parameters) {
      http13_request = false;
      if (window.XMLHttpRequest) { // Mozilla, Safari,...
         http13_request = new XMLHttpRequest();
         if (http13_request.overrideMimeType) {
         	// set type accordingly to anticipated content type
            //http13_request.overrideMimeType('text/xml');
            http13_request.overrideMimeType('text/html');
         }
      } else if (window.ActiveXObject) { // IE
         try {
            http13_request = new ActiveXObject("Msxml2.XMLHTTP");
         } catch (e) {
            try {
               http13_request = new ActiveXObject("Microsoft.XMLHTTP");
            } catch (e) {}
         }
      }
      if (!http13_request) {
         alert('Cannot create XMLHTTP instance');
         return false;
      }
 
      http13_request.onreadystatechange = alertContentsnot;
      http13_request.open('POST', url, true);
      http13_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
      http13_request.setRequestHeader("Content-length", parameters.length);
      http13_request.setRequestHeader("Connection", "close");
      http13_request.send(parameters);
   }
 
   function alertContentsnot() {
      if(http13_request.readyState==3)
      {
   	  document.getElementById("coverblock").innerHTML="<center><span style=\"margin-top:50%;\"><img src=\"ajax/ajax-loader.gif\"></span><center>";
      }
	  if (http13_request.readyState == 4) {
         if (http13_request.status == 200) {
            //alert(http13_request.responseText);
            result = http13_request.responseText;
        	document.getElementById('coverblock').style.display = "none";            
    		document.getElementById('displaybox').innerHTML = result;            
         } else {
            alert('There was a problem with the request.');
         }
      }
   }
 
   function getnotfriend(obj,page) {
  var poststr = "taremail=" + encodeURI( document.getElementById("taremail").value ) +
					"&fromuser=" + encodeURI( document.getElementById("fromuser").value ) +
					"&tourid=" + encodeURI( document.getElementById("tourid").value ) +
					"&eventid=" + encodeURI( document.getElementById("eventid").value );
      makePOSTRequest13('ajax/first/'+ page +'?event=' + encodeURI( document.getElementById("eventid").value ), poststr);
   }