gistfile1.txt

<zk>
<window  id="win" border="normal" width="400px" height="500px">
         <label id="hello" value="not changed" />
</window>

<script type="text/javascript">
    zk.afterMount(function() {   // do in this for zk is already loaded
              function zk$( widgetId ){
                        return   zk.Widget.$(jq("$"+widgetId));
              }

              jq("$win").mousemove(function(e){
                      zk$("hello").setValue("This is a exmaple for (" + e.pageX +", "+ e.pageY +");");
             });


    });
</script>
</zk>