Enter key button press not working in FireFox.

Hi Experts,


I have to set enter key event to text box, it work fine in  IE, but not in firefox.


Here my code


function DoClickToButton() {
            var keycode = (event.keyCode ? event.keyCode : (event.which ? event.which : event.charCode));
            alert(keycode);
            if (keycode == 13) {
                document.getElementById('<%=Button1.ClientID %>').click(); return false;
            }

            else {
                return true< ...