Giving a Variable a Parameter Value

Giving a Variable a Parameter Value

Dear All,

I have an HTML view with an embedded Stateless form the form has a drop down menu.

When you select an item from the drop down menu and click on the stateless form button, the stateless form will open the same page but will add a parameter called ParaID.

How can I get hold of what that parameter is?

How can I create a variable, let us call it "SelectedParaID" and give it a value = ParaID

Thank you,
Sam