Al keypress intercetto l'invio e a seconda del controllo ove mi trovo col focus mi esegue il tab (nel caso delle txt e l'onclick nel caso dei bottoni.
Vi ringrazio se mi aiutate a risolvere sta cosa.


Codice PHP:
<html>
    <head>
        <script>
            function _doKeyUp()
            {
                try
                {
                    switch(event.keyCode)
                    {
                        case     38:                // cur up
                            break;
                        case     40:                // cur down
                            break;
                        case     39:                // cur right
                            break;
                        case     37:                // cur left
                            break;
                        case     39:                // cur righ
                            break;
                        case     33:                // pag up
                            break;
                        case     34:                // pag down
                            break;
                        case     36:                // home 
                            break;
                        case     116:            // F5
                            break;
                        case     35:                // end
                            break;
                        case     13:                // enter
                            //Tab+1
                            //se sono su button lanciare l'evento click
                            break;
                        case     27:                // escape
                            break;
                    }
                    event.returnValue = false;
                }
                catch(e)
                {
                    alert('Error in _doKeyUp ' + e);
                }
                return false;    
            }
        </script>
    </head>
    <body onkeyup="_doKeyUp();">
        <input type="text">

        <input type="text">

        <input type="button" onclick="alert('clikkato!');">
    </body>
</html>