function select disabel/enable permalink

I would like to create entries for the homepage of the website where I can choose disble/enable permalink, because i like to show sometimes only a little text or a image without link.
I have installed Shaken Grid Theme, and i think about to put in admin-custom.php:

array(
‘name’ => ‘Show permalink?’,
‘desc’ => ‘BLABLABLA’,
‘id’ => $prefix . ‘show_permalink’,
‘type’ => ‘select’, // select box
‘std’ => ”,
‘options’ => array(‘No’, ‘yes’) // array of options for select box
),

but then i need to put some code in loop.php and i´m a beginner and make a lot of mistakes.
Can you help me! please.