[Javascript] Detecting ActiveX control

[Matt Barton]

Hi,

I have a custom ActiveX control which is running in my intranet app 
(target browser is only Win IE5.5+).

Is there any way for me to detect, in javascript, if the control is 
accessible by the browser?

I find my users often have IE security settings which prevent the 
control from running, and this causes a javascript runtime error: 
"Object doesn't support this property or method".

Any ideas?

Matt