Cufon.replace('.menu_main_btn', { fontFamily: 'Myriad Pro Condensed' });

Cufon.replace('h1', { fontFamily: 'Myriad Pro Condensed' });
Cufon.replace('h2', { fontFamily: 'Myriad Pro Condensed' });
Cufon.replace('h3', { fontFamily: 'Myriad Pro Condensed' });

Cufon.replace('.menu_left_title', { fontFamily: 'Myriad Pro Condensed' });