How to scroll months in several calendars at the same page ?

Its possible to make a trick for scrolling months in several calendars at the same page by clicking on "external links".
Its means that you will have 2 external links (do not inside of calendars for scrolling months forward or backward).
Example:

<a class="button" onclick="jQuery('div.hasDatepick').each(function( index ) { jQuery.datepick._adjustDate(this, -1, 'M'); });" href="javascript:void(0)">Previous Month in all calendars</a> - <a class="button" onclick="jQuery('div.hasDatepick').each(function( index ) { jQuery.datepick._adjustDate(this, +1, 'M'); });" href="javascript:void(0)">Next Month in all calendars</a></p>
<div class="clear"></div>
<div style="float:left;width:45%;margin-right:5%;">[booking type=3 form_type='standard' nummonths=1]</div>
<div style="float:left;width:45%;margin-right:5%;">[booking type=4 form_type='standard' nummonths=1]</div>
<div class="clear"></div>
<p>
P.S. Please read how manually to configure Booking Calendar shortcodes here.