> here is the code

> GEvent.addListener(marker, "click", function() {
>                 var html = "<label>What:<br /><input id='what' type='text'
> value=''></label> <button onclick=saveMarker()>save marker</button> ";
>                 marker.openInfoWindowHtml(html);
>         });

> function saveMarker(){
>     alert(document.getElementById('what').value) // doesnt works.

> }