attachEvent("onClick" don't work

Suite and Optimus Suite 5
#1

i have a tree, using json lazy load. i attaches a few event handlers like onXLS, onXLE, onDrag, onDrop, onOpenDynamicEnd, and onOpenEnd. recently i add onClick event handler, but it dosen’t work. need help.

#2

Please, provide some details about the issue. How do you set the handler ?