Recursion... Sort of...

Is there a way to tell if a function has been called that has resulted in a call to the same function? We have an in-house CRM app that has a function that draws a tabbed panel on a screen... BUT if there are sub-sub-tabbed panels we want to invert the tab colors and panel colors... So... DrawSubTab($Set) - Black on White Content DrawSubTab($Set) - White on Black Content DrawSubTab($Set) - Black on White Content DrawSubTab($Set) - Black on White Content Etc... I suppose I could rewrite EVERY call to the function with a recursion count like DrawSubTab($Set,$DepthCount+1) but that would be a MASSIVE commit... whereas if the function can determine itself... All that said I can't think of a good way to do it without a bastardized global variable that track "how deep" we are and there is something that bothers me about that approach... Unless that really is the easiest way. Thanks in advance! Matt