document.write doesn't do that... well on different browsers it doesn't... not really important as i can adjust that.
I know the other things. I considered it and decided to go with this style calender just for the overall simplicity for what i am using it for as the corrections made via the gregorian calender for this particular thing i can just shove aside. Also i want 1900 feb 29 on there... for my purposes that is accurate.
edit... oh wait you mean when i hit the button the button goes away. i know. doesn't matter for this. It works fine how i have it in the code i showed.