tried it this way

function toggle_pan()
{
while(key_v == on)
{
wait(1);
}
"insert name of panel here".visible = ("insert name of panel here".visible == off);
"insert name of panel here".visible = ("insert name of panel here".visible == off);
"insert name of panel here".visible = ("insert name of panel here".visible == off);
"insert name of panel here".visible = ("insert name of panel here".visible == off);
}

}
on_v = toggle_pan;


and it works just perfect thank u so much