I downloaded Standard Edition v.3.5 from the website and installed dhtmlxWindows components locally that have been referenced from the sample page below.
Hi
First of all you’ve not defined you html document structure. it is important.
Then if you use script in body - you don’t need to put window’s init in a function (i.e.‘doOnLoad()’).
I’ve correct you code - see attachments. index.rar (1.03 KB)