var xmlHttp
function lastUpdated() {
	
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null) {
		alert ("Your browser does not support AJAX!");
		return;
  	} 
  	
  	var url="http://"+parseUri(window.location.href)+"/lastupdated.php";
  	url=url+"?sid="+Math.random();
  	xmlHttp.onreadystatechange=stateChanged;
  	xmlHttp.open("GET",url,true);
  	xmlHttp.send(null);
} 

function stateChanged() {
	if (xmlHttp.readyState==4)
	{ 
		document.getElementById("lastupdated").innerHTML=xmlHttp.responseText;
	}
}

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;
}
function parseUri(sourceUri){
    var uriPartNames = ["source","protocol","authority","domain","port","path","directoryPath","fileName","query","anchor"];
    var uriParts = new RegExp("^(?:([^:/?#.]+):)?(?://)?(([^:/?#]*)(?::(\\d*))?)?((/(?:[^?#](?![^?#/]*\\.[^?#/.]+(?:[\\?#]|$)))*/?)?([^?#/]*))?(?:\\?([^#]*))?(?:#(.*))?").exec(sourceUri);
    var uri = {};

    for(var i = 0; i < 10; i++){
        uri[uriPartNames[i]] = (uriParts[i] ? uriParts[i] : "");
    }

    // Always end directoryPath with a trailing backslash if a path was present in the source URI
    // Note that a trailing backslash is NOT automatically inserted within or appended to the "path" key
    if(uri.directoryPath.length > 0){
        uri.directoryPath = uri.directoryPath.replace(/\/?$/, "/");
    }

    return uri.domain;
}

window.onload = lastUpdated;