a problem is a proble.....get URL and buttons

[creo]

ok, i've this prob:

http://www.archeogate.it/NILO/index.html

in the second map

every three time i use a button the whole site crashes....
it doesn't work anymore, and if i try to refresh the page doesn't load.....
how can i do?
....

[tg]

seems to work for me.
win2k, f7 player, firefox browser.