var url;
function setUrl(_url){
	this.url = _url;
}
function ajaxpage(url, containerid){
	var page_request = false
	if (window.XMLHttpRequest) // if Mozilla, Safari etc
		page_request = new XMLHttpRequest()
	else if (window.ActiveXObject){ // if IE
		try {
			page_request = new ActiveXObject("Msxml2.XMLHTTP")
		} 
		catch (e){
			try{
				page_request = new ActiveXObject("Microsoft.XMLHTTP")
			}
			catch (e){}
		}
	}
	else
	return false
	page_request.onreadystatechange=function(){
		loadpage(page_request, containerid)
	}
	page_request.open('GET', this.url + url, true)
	page_request.send(null)
}

function loadpage(page_request, containerid){
	if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1)){
	   document.getElementById(containerid).innerHTML=page_request.responseText
	}else{
      document.getElementById(containerid).innerHTML= 'aguarde carregando...';
	}
	/*
    page_request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=iso-8859-1");
    page_request.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");
    page_request.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");
    page_request.setRequestHeader("Pragma", "no-cache");	
	*/
}