First place the files in any directory (for one section of code you may need to edit if you do not put it in: "%YaBB installation%/calendar/" directory)
Then edit the as follows:

You MUST add this to the Default.html page (if you have another name for the main template page edit it):
<script type="text/javascript"> /*********************************************** * Cool DHTML tooltip script- © Dynamic Drive DHTML code library (www.dynamicdrive.com) * This notice MUST stay intact for legal use * Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code ***********************************************/ var offsetxpoint=-60 //Customize x offset of tooltip var offsetypoint=20 //Customize y offset of tooltip var ie=document.all var ns6=document.getElementById && !document.all var enabletip=false if (ie||ns6) var tipobj=document.all? document.all["dhtmltooltip"] : document.getElementById? document.getElementById("dhtmltooltip") : "" function ietruebody(){ return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body } function ddrivetip(thetext, thecolor, thewidth){ if (ns6||ie){ if (typeof thewidth!="undefined") tipobj.style.width=thewidth+"px" if (typeof thecolor!="undefined" && thecolor!="") tipobj.style.backgroundColor=thecolor tipobj.innerHTML='<span style="font-size:'+tipobj.style.textsize+'px;">'+thetext+'</span>' enabletip=true return false } } function positiontip(e){ if (enabletip){ var curX=(ns6)?e.pageX : event.x+ietruebody().scrollLeft; var curY=(ns6)?e.pageY : event.y+ietruebody().scrollTop; //Find out how close the mouse is to the corner of the window var rightedge=ie&&!window.opera? ietruebody().clientWidth-event.clientX-offsetxpoint : window.innerWidth-e.clientX-offsetxpoint-20 var bottomedge=ie&&!window.opera? ietruebody().clientHeight-event.clientY-offsetypoint : window.innerHeight-e.clientY-offsetypoint-20 var leftedge=(offsetxpoint<0)? offsetxpoint*(-1) : -1000 //if the horizontal distance isn't enough to accomodate the width of the context menu if (rightedge<tipobj.offsetWidth) //move the horizontal position of the menu to the left by it's width tipobj.style.left=ie? ietruebody().scrollLeft+event.clientX-tipobj.offsetWidth+"px" : window.pageXOffset+e.clientX-tipobj.offsetWidth+"px" else if (curX<leftedge) tipobj.style.left="5px" else //position the horizontal position of the menu where the mouse is positioned tipobj.style.left=curX+offsetxpoint+"px" //same concept with the vertical position if (bottomedge<tipobj.offsetHeight) tipobj.style.top=ie? ietruebody().scrollTop+event.clientY-tipobj.offsetHeight-offsetypoint+"px" : window.pageYOffset+e.clientY-tipobj.offsetHeight-offsetypoint+"px" else tipobj.style.top=curY+offsetypoint+"px" tipobj.style.visibility="visible" } } function hideddrivetip(){ if (ns6||ie){ enabletip=false tipobj.style.visibility="hidden" tipobj.style.left="-1000px" tipobj.style.backgroundColor='' tipobj.style.width='' } } document.onmousemove=positiontip </script>

You MUST add this to the pages .CSS file(s) (you may edit as pleased):
.calendar{ font-size: 7px; } #dhtmltooltip{ position: absolute; width: 150px; border: 2px solid black; padding: 2px; background-color: lightyellow; visibility: hidden; z-index: 100; textsize: 1; }

You MUST edit the Subs.pl file as follows:
Find this line: "for(my $i = 0; $i <= $#yytemplate; $i++) {"
Above that line add this:
require $calendar; $yycalendar = makecal();

You MUST edit the Paths.pl file and add this line (preferably at the bottom, but not past the "1;"):
$calendar = "./calendar/calendar.pl"; $caldata = "./calendar/calendar.txt";

LAST but not least; Edit your Default.html page (if you have another name for the main template page edit it) and add this where ever you want the calendar to on the page:

If you have problems installing or if I missed something, please email me at: thegreatall@gmail.com (please note: this is mod for YaBB2 is not finished)