Sample dhtmlxTree Error handlers don'y work in firefox

Hi,

I don’t get any alert message using the sample
[url]http://www.dhtmlx.com/docs/products/dhtmlxTree/samples/06_error_handlers/01_pro_custom_error.html[/url] in firefox. In IE it works fine.

Is it me doning something wrong?

Hi
There is a bug, we are going to check it, thank you.