function stepClickHandler(event)
{
    event.preventDefault();

    var anchor = $(this),
        wizard = anchor.parent().parent().parent().parent(),
        options = getOptions(wizard),
        state = getState(wizard),
        oldIndex = state.currentIndex;

    if (anchor.parent().is(":not(.disabled):not(.current)"))
    {
        var href = anchor.attr("href"),
            position = parseInt(href.substring(href.lastIndexOf("-") + 1), 0);

        goToStep(wizard, options, state, position);
    }

    // If nothing has changed
    if (oldIndex === state.currentIndex)
    {
        getStepAnchor(wizard, oldIndex).focus();
        return false;
    }
}
Fires when a step click happens.

@static
@private
@event click
@param event {Object} An event object