function fireButton(e, btID) {
    var keynum;

    if (window.event) // IE
    {
        keynum = e.keyCode;
    }
    else if (e.which) // Netscape/Firefox/Opera
    {
        keynum = e.which;
    }

    if (keynum == 13) {
        var bt = document.getElementById(btID);
        if (bt.tagName == 'A') {
            if (bt.onclick != null) {
                bt.onclick();
            }
            else {
                window.location = bt.href;
            }
        }

        return false;
    }

}

function evalIfEnterPressed(e, code) {
    var keynum;

    if (window.event) // IE
    {
        keynum = e.keyCode;
    }
    else if (e.which) // Netscape/Firefox/Opera
    {
        keynum = e.which;
    }

    if (keynum == 13) {
    
        window.eval(code);
        
        return false;
    }

}