Board Thread:Support Requests - Getting Technical/@comment-3387692-20130103043303

Hello all, I'm hoping to get some help with an infobox I'm working on which can be seen here. What I'm trying to do is effectively neutralize/redirect a few parameter values that have been used in the past on pages with the template (in an effort to change formatting without needing to urgently revise hundreds of pages). That may sound a little vague, so as an example see how I've already done that with another parameter/set of values here:
 * As you can see, the values have been changed (to unlinked versions in this case).
 * Now on a number of pages using this template the value for "" has been specified as "Image:Placeholder" or "File:Placeholder". I would like to be able to perform a similar maneuver (which I assume would use the #switch function again, but I could be wrong) to change these two values. The current gamut of coding dealing with the template's image is as follows:


 * I would like the template to perform


 * when "Image:Placeholder" or "File:Placeholder" are the value of "".

I tried somewhat lazily to do it myself a few times to no avail. I guess I'm confused about at exactly what level (this is all starting to feel very Inception-like :p ) and where to put this #switch, or if that's even the best way to do it. If anyone could help, I'd be very grateful. 