function $(id) {
return document.getElementById(id);
}

function insertHtml(ident,txt){
   document.getElementById(ident).innerHTML=txt;
}

advAJAX.setDefaultParameters({
  mimeType : 'text/plain',
  onInitialization : function(obj) { document.getElementById(obj.tag).innerHTML = ""; },
  onLoading : function(obj) { document.getElementById(obj.tag).innerHTML = ""; },
  onSuccess : function(obj) { document.getElementById(obj.tag).innerHTML = obj.responseText; },
  onError : function(obj) { document.getElementById(obj.tag).innerHTML = "Error: " + obj.status; }
	 });