function saveCurrentStateToCookie(wizard, options, state)
{
    if (options.saveState && $.cookie)
    {
        $.cookie(_cookiePrefix + getUniqueId(wizard), state.currentIndex);
    }
}
Saves the current state to a cookie.

@static
@private
@method saveCurrentStateToCookie
@param wizard {Object} A jQuery wizard object
@param options {Object} Settings of the current wizard
@param state {Object} The state container of the current wizard