Problem with my nav code

OK, first of all: sorry for posting something that you guys have probably already answered countless times. Anyway, I’m making a site and am having trouble with the nav. I want to be able to make the nav just like the picture file below describes it.

I’ve used the code:

[color=Blue]on (press) {
this.gotoAndPlay(“nav”);
}[/color]

where [color=Blue]“nav”[/color] is the frame label for the beginning of my movie clip that is to be played when the user clicks on the button.

I know I’m going wrong somewhere, but I just can’t figure out where. I’ve already Googled and found loads of tutorials, but none of them that I have found work for this scenario.

If anyone can help me, or point me to a tutorial i would very much appreciate it.

Below is an image file describing how I want the site nav to turn out: