function ajaxpage(url,containerid,postvars,theme_url) {
	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() {
		document.getElementById(containerid).innerHTML = "<img width=13 src='"+theme_url+"/images/loading.gif' align=absmiddle>";
		loadpage(page_request, containerid);
	}

	parameters = postvars;
    //page_request.open('GET', url,true);
	page_request.open('POST', url+"&"+new Date().getTime(),true);
	page_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	page_request.send(parameters);
}

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;
    }
}