function getWp(parameters){
document.getElementById("wp").innerHTML = "";
var xmlHttp;
try{
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e){
  // Internet Explorer
    try{
    	xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e){
    try{
    	xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
        catch (e){
        	alert("Your browser does not support AJAX!");
        	return false;
    	}
	}
}
xmlHttp.onreadystatechange=function(){
    if(xmlHttp.readyState==4){
	  var result = xmlHttp.responseText;
	  document.getElementById('wp').innerHTML = result;
      }
    }
	parameters = parameters + "&dummy=" + new Date().getTime();
    xmlHttp.open("GET","walltabs.php" + parameters,true);
    xmlHttp.send(null);
}