AjaxToolkit:CalendarExtender display problem

I've been using the AjaxToolkit:CalendarExtender for quite a while. Its always worked really well for me... until today.  I added it to a site and the header was not displaying properly.  The month name and the next arrow in the header were not there, only the previous arrow displayed in the calendar header.

As I saw in many posts, the cause is a CSS conflict.  Sure enough, in the designer's CSS, he had a style defined for all div tags that was messing up the calendar header.  I think it was a combination of a position:relative and a display:block that caused the problem.  I tried everything I could think of to fix it without having to modify the designer's CSS file.  I gave the calendar its own class and tried to override the div settings.  I tried defining styles for .ajax__calendar_header.  Couldn't get anything to work for two hours.  I never found a solution for the CalendarExtender, but I did find an alternative.

After doing a search for "javascript calendar date picker", I found the Tigra Calendar.  There is a live demo on the page linked to there.  It looks better than the CalendarExtender and it was even easier to implement.  No AjaxControlToolkit.dll is needed, just a .js file and a .css file.  Their examples use an HTML input control as the target for the calendar, but I found that it worked just as well with an asp:TextBox control.  And its free!  They do have some nice features in the paid version, and that's only $29, so I could definitely see using the paid version on some project in the future.  Particularly for the ability to restrict to certain dates.  Very glad to have found this calendar.