I thought id post an answer to this that I actually got from
Anjula at ViArt Support. It doesnt answer my personal request, as the checking function to stop duplicate date bookings is the key thing for me and that is currently outside of viarts scope.
However, adding a calendar to the interface and storing these results is quite easy. For anyone interested, heres a good rundown on how to do that...
If you want to use options per a product, you can create a calendar javascript file on all pages you want to use it on, like products.html, somewhere between <head></head> tags:
<script language="JavaScript" src="js/calendar.js"></script>
and add special code into 'After control field' for an option, as below:
<A HREF="#"
onClick="setDateField(document.form_{item_id}.property_name_{property_id}, 'YYYY/MM/DD');
top.newWin = window.open('js/calendar.html','cal','dependent=yes,width=210,height=230,screenX=200,screenY=300,titlebar=yes'); top.newWin.focus(); return false;">
<IMG SRC="images/calendar.gif" BORDER=0><font size=1>{CALENDAR_MSG}</font></A>
In case you are interested in having a more advanced functionality, then additional programming is required. Please, let us know should we calculate the cost for such customization.
