your solution will still use two buttons though, GecT?

he wants a button that toggles on and off hide-polygons

the first thing i can think of is to use an if-statement
if polygons not visible
then show polygons
else hide them

but, i don't know what scripting languages can do yet

what i suggest is finding a script that toggles something and seeing if you can steal any of that code

there's a script on highend3d, i think, that toggles xray mode. it might contain a solution or inspiration to get that hide/show-polygon button you're after