Referencing Service Catalog Variables in Workflow

We have a Service Catalog to request various Telecom Requests.   I am building a Workflow, based on the Requested Item that is created from the Request.   I am trying to add an IF Action that checks to see if the request was for some special software (in which case, I will then use Create Task to create a task fro the software installation).

So, on the Service Catalog, the variable for the requested item is named u_request_type, and it is a Reference Field to the table which contains the various request selections.   The code for my IF action looks like this:

answer = ifScript();

var requestType = current.variables.u_request_type;

function ifScript() {
      if (requestType == 'Special Software') {
              return 'yes';

      } else {

              return 'no';

      }
}

Needless to say, it doesn't work.   I think it is because the u_request_type is a reference field to another table.

So, how do I get the displayed value for this field?   Do I need to dot-walk, or somehow use GetDisplayName?

Not sure exactly what the code for that needs to look like.

Thanks