Javascript Edit object in toolbar component

HTML Executable
1

Is any possible method to access object in toolbar from javascript page? for example to enable or disable refresh button. Thank you.

2

Yes, that’s possible. Use the method described here:
https://www.htmlexe.com/help/callscript#using-javascript
And then in HEScript code, add

procedure MyScript1;
begin
 SetUIProp('breload', 'Enabled', '0');
end;