So, I had an idea for an application I would like to make. The only programming I know is HTML. However, my classes are over, and I have the summer to do pretty much as I please, and I'd like to make an app for Mac OS X. So, OK, my first question is, when programming in Mac OS X, do you need to know a coding language? If so, what is the language? Second, do you use a coding language to write Cocoa apps, or is Cocoa itself the language? I get the sense that there are multiple ways to approach making a Cocoa app, do any of them involve WSIWYG programming? I can imagine these questions would annoy you guys who know a lot about this, but I'd appreciate you humoring all the same.