i`ve already instelled php free chat but still not work. when i open my page http://www.btsm-fai.wz.cz/chat1
in few sec appear this report
error: the xajax Javascript file could not be included. Perhaps the URL is incorrect?
URL:w/wz.cz/b/btsm-fai/chat1/data/public/xajax_js/xajax.js
i dont know what i must change or set
plz can someone help me?