position by button instead of input

[mb666]

I'm using your timepicker with hidden input box. Timepicker is displayed by a button. I need it to show by the button as well. How about adding a showByButton option:

// position with the ui position utility, if loaded
if ((!inst.inline) && (typeof $.ui.position == 'object')) {
    // show by button or input
    var of = !!inst.settings.showByButton ? $(inst.settings.button) : inst.input;   /

    inst.tpDiv.position({
        of: of,
        my: $.timepicker._get(inst, 'myPosition'),
        at: $.timepicker._get(inst, 'atPosition'),
        // offset: $( "#offset" ).val(),
        // using: using,
        collision: 'flip'
    });
    var offset = inst.tpDiv.offset();
    $.timepicker._pos = [offset.top, offset.left];
}

Change is around like number 360 in jquery-ui-timepicker.js