How do I show/hide elements on a page using jquery?
the easiest way of adding custom javascript-snippets is to create a custom.js file in your themefolder and declare it in your theme.info file like scripts[] = custom.js. Add all your snippets there.

In your JS file you can hide the elements. 
If you have multiple checkboxes create an array and hide them with a for each loop.

example

// create array with stuff you want to hide
    checkboxes = [
        '#checkbox1',
        '#checkbox2',
    ];

// Hide arrays
    for (i = 0; i &lt; checkboxes.length; i++) {
        jQuery(checkboxes[i]).hide();
    }