Photoshop :: Linking To Other Pages In Flash (Actionscript)

I have tried all of the getURL() stuff but it doesnt work how can i link to other pages eg /Chassis heres my actonscript so far
Code:
butt1.onRollOver = over;
butt1.onRollOut = out;
butt1.text.buttonText.text = "Chassis ";

butt2.onRollOver = over;
butt2.onRollOut = out;
butt2.text.buttonText.text = "PARTS ";

butt3.onRollOver = over;
butt3.onRollOut = out;
butt3.text.buttontext.text= "Accessories ";

butt4.onRollOver = over;
butt4.onRollOut = out;
butt4.text.buttontext.text= "About US ";

function over() {
this.gotoAndPlay(2);
}

function out() {
this.gotoAndPlay(1);
}