function ajaxpage(url, containerid){
var page_request = false;


if (window.XMLHttpRequest) // Mozilla, Safari etc
	page_request = new XMLHttpRequest()
	else if (window.ActiveXObject){ // IE
	try {
		page_request = new ActiveXObject("MSXML2.XMLHTTP.3.0")
		} 
	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', 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))
if (page_request.readyState == 4 && page_request.status==200)
{
document.getElementById(containerid).innerHTML=page_request.responseText
}
}




function toggleLayer( whichLayer )
{
  var elem, vis;
  if( document.getElementById ) 
    elem = document.getElementById( whichLayer );
  else if( document.all ) 
      elem = document.all[whichLayer];
  else if( document.layers ) 
    elem = document.layers[whichLayer];
  vis = elem.style;
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}