/*
Copyright 2007 Tackenco - Niels Meijer

More information: http://www.tackenco.nl/
*/

var url = "ajax/ajax_content.php";

// make object if possible
function GetXmlHttpObject(handler) { 
	if (navigator.userAgent.indexOf("Opera")>=0) {
		alert("This doesn't work in Opera") 
		return 
	}
	if (navigator.userAgent.indexOf("MSIE")>=0) { 
		var strName="Msxml2.XMLHTTP"
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0) {
			strName="Microsoft.XMLHTTP"
		} 
		try { 
			objXmlHttp=new ActiveXObject(strName)
			objXmlHttp.onreadystatechange=handler 
			return objXmlHttp
		} 	
		catch(e) { 
			alert("Error. Scripting for ActiveX might be disabled") 
			return 
		} 
	} 
	if (navigator.userAgent.indexOf("Mozilla")>=0) {
		objXmlHttp=new XMLHttpRequest()
		objXmlHttp.onload=handler
		objXmlHttp.onerror=handler 
		return objXmlHttp
	}
}

function GetContent(parameter) {		
	xmlHttp=GetXmlHttpObject(handleHttpResponse);
	xmlHttp.open("GET",url + parameter);
	xmlHttp.send(null);
}

// output html
function handleHttpResponse() {
	if (xmlHttp.readyState == 4) {
		if (xmlHttp.status == 200) {
            document.getElementById("wrapper").style.visibility="visible"; 		
			document.getElementById("wrapper").innerHTML='';
			document.getElementById("wrapper").innerHTML=xmlHttp.responseText;           
        }
	} else {return}
}