COCOS2D Level Select

[HelvecticaArial]

I'm trying to make a level select that uses the sender tag and send the scene to level1 scene, level2 scene, and so on. The buttons tags are 1, 2, and so on.

- (void) LaunchLevel: (id) sender
{
    int SelectedLevel = [sender tag];
    id SendHere = (@"level%i", SelectedLevel);
    [[CCDirector sharedDirector] replaceScene:[SendHere scene]];
}

Why is this not working? Everytime I try to run the app it crashes.

[setsura]

- (void) LaunchLevel: (id) sender
{
    UIButton *btn = (UIButton*) sender;  - // this will work
    int SelectedLevel = btn.tag;
    id SendHere = (@"level%i", SelectedLevel);
    [[CCDirector sharedDirector] replaceScene:[SendHere scene]];
}