Problems with checkboxes arrays [JS, Jquery]

In my html code, i have 2 checkboxes arrays, like the following ones:

<?php for($i=0;> i<array.length;i++){?>
    <input type="checkbox" name="taski[]">
    <input type="checkbox" name="tooli[]" disabled>
<?php }?>

What i want to do with JS/Jquery if a checkbox in taski is selected, the checkbox with the same index in tooli becomes enabled.

Thanks guys