Altiris 7.x: Passing parameters via URL to EditCreateResource.aspx

Hello Everyone

I wand to create a custom RightClickAction that creates a resources. Therefore I call a URL and use the page EditCreateResource.aspx to open the create dialog. The action calls the following URL:

https://altiris75.gamma.support.local/Altiris/Asse...

I know I can pass parameters via the URL to the Create Resource Page. Is used this above for the name of the new item. The resource I wand to create should also get an association to the Resource I opened the RightClickAction on.

But I don't know the syntax for passing a resource association as parameter via url. An attribute is easy as I can use it's name. 

Can anyone tell me how I can pass association parameters?

Thanks in advance.