Make a button?

1

i need a gray button, once i click on it, change to blue, click again, change back to gray.

so i have two frames and the instant name:showerhead1_mc

the problem is, it change from gray to blue when click on it, but couldn’t change from blue to gray when click on it again.

this is the code:

stop();
var i:int= 1;

showerhead1_mc.addEventListener(MouseEvent.CLICK,onClick);
function onClick(event:MouseEvent): void
{if (i==1)
{
gotoAndStop(2);
}

else
{
gotoAndStop(1);
}
}