Making Check Boxes on Order Form Preselected

How can I set it so that the check boxes for both items on this page are prechecked

http://www.musicindustryprofits.com/amember/signup.php?price_group=-1



There item ids are 5 and 6

Thanks


TY

Here's the proper payment link:

http://www.musicindustryprofits.com/amember/signup.php?price_group=-1&product_id[]=5&product_id[]=6


But you have to remove your code from the template:

<input type="hidden" name='price_group' value='-1' />
<input type="hidden" name='product_id[0]' value='5' />
<input type="hidden" name='product_id[1]' value='6' />


dK