function makeRequest(url) {
    var http_request = false;
    if (window.XMLHttpRequest) { // Mozilla, Safari,...
      http_request = new XMLHttpRequest();
    } else if (window.ActiveXObject) { // IE
      try {
        http_request = new ActiveXObject("Msxml2.XMLHTTP");
      } catch (e) {
        try {
          http_request = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e) {}
      }
    }

    if (!http_request) {
      alert('Giving up :( Cannot create an XMLHTTP instance');
      return false;
    }

    http_request.onreadystatechange = function() { 
                                      alertContents(http_request); };
    http_request.open('GET', url, true);
    http_request.send(null);
  }

  function alertContents(http_request) {
    if (http_request.readyState == 4) {
      if (http_request.status == 200) {
      //  var xmldoc = http_request.responseXML;
      //  var nodes = xmldoc.getElementsByTagName('area');

		var mesg = http_request.responseText;

     //   for(var i=0; i<nodes.length; i++) {
     //     mesg += nodes[i].firstChild.nodeValue + "\n";
     //   }
	 
	 if(mesg =='1'){
        alert('Updated!');
		window.location.reload();
	}
	if(mesg =='-1'){
		alert('Update failed');
	}
      } else {
       // alert('There was a problem with the request.');
      }
    }
  }