Tapestry 5.1 and ajax callback

[Javier Val Lista]

Hi!

I'm trying to make an ajax call from the tml page. The idea would be to
invoke a servlet to return me a string.
The javascript function is:

function getComment(paramId) {

var xmlhttp;
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }

  xmlhttp.onreadystatechange=function()
  {
  if (xmlhttp.readyState==4 && xmlhttp.status==200)
    {
    //document.getElementById("myDiv").innerHTML=xmlhttp.responseText;
    alert('El server responde' + xmlhttp.responseText);
    }
  }
  xmlhttp.open("GET","/myapp/combo/?personId=paramId",true);
xmlhttp.send();

}


The url "/myapp/combo/" is mapped in web.xml:


<servlet>
<servlet-name>ComboServlet</servlet-name>
<servlet-class>xxx.xxx.ComboServlet</servlet-class>
</servlet>


<servlet-mapping>
<servlet-name>ComboServlet</servlet-name>
<url-pattern>/combo/*</url-pattern>
</servlet-mapping>


The problem is that it seems that the url is wrong, because the servlet
does not intercept the "GET".
Does anyone know what I'm doing wrong, or if there is another way?

Thanks!!!