Show/Hide Business Process Flow on Contact form based on Field value

Hi, 

I have a contact form with a Lead Qualification Business Flow.  I only want this BPF to show when Contact Type = Prospect and Contact Sub-Type = Lead.  For example, if Contact Type = Employee, I would not want this Business Process Flow to show.  

I tried doing this via Workflow to call an Action, but I do not see the "SetProcess" Action step. 

I know this can be done via JScript, but I don't have the code for that.  

If someone knows a way to do this without code, could you let me know?  If not, I would gladly take sample code :)  

Thanks in advance!