In HTML view - Getting context Object as null in Invetory( eg: Datacenter ) of action wizard

Hello,

I have added an HTML wizard in the right click action of inventory( eg: datacenter ).

I need context object of lets say datacenter.

I am using "var object = WEB_PLATFORM.getObjectId();"

But I getting null.

Is there any way to get context object in HTML action wizard.

Thanks In Advance