Change font for Navigation

Hi I like to change the font of my Navigation :) I found this code but acctually it doesen’t worked. I’d like to use the font Open Sans Condensed

Pasted in, as already menthion somwhere, under this code:
if(isset($avia_config[‘use_child_theme_functions_only’])) return;

add_filter( ‘avf_google_heading_font’, ‘avia_add_heading_font’);
function avia_add_heading_font($fonts)
{
$fonts[‘Open Sans Condensed’] = ‘Open Sans Condensed:400,600,800’;
return $fonts;
}

add_filter( ‘avf_google_content_font’, ‘avia_add_content_font’);
function avia_add_content_font($fonts)
{
$fonts[‘Open Sans Condensed’] = ‘Open Sans Condensed:400,600,800’;
return $fonts;
}