Sort Grid fieldtype Entries in Multiple Ways - JavaScript?

Hi, novice programmer. I have a list of people as entries on a Grid fieldtype. Currently, they are being called into the template partial like so:

{staff_grid}
    {staff_grid:photo}
    {staff_grid:name}

etc., etc. This is not exact code, just examples for clarity. I used the W3Schools method to create filter buttons so that All entries can be viewed as well as 4 additional filtered views using a field of the Grid and an onclick=”thisFunction()” on the buttons. However, currently all 5 views list the Grid entries in ascending alphabetical order/the order of the entries on the CMS-side.

For one specific filter view, denoted by a <button> with id=”Executive”, the entries need to be listed in descending order instead. I have had ideas but they’ve either not worked or I’m not sure how to actually write them out in code.

1. An if statement right before {staff_grid} that checks for the button #Executive having class=”active” (part of the W3 filter method) to add “sort=”desc”” parameter to staff_grid, but I don’t know how to actually write the if statement because I don’t believe you can use CSS selectors and I’m not sure how to tell it to check the class in that way.

2. Probably the more correct answer, a JavaScript function. However, this is what I’ve been trying that has not worked:

function resortSelection() {
 document.getElementById("gridfield").i n n e r H T M L = "{staff_grid sort="desc"}";
}

and further down in the code

<button id="Executive" >Executive</button>

and

(carat)p id="gridfield"(carat) {staff_grid} (carat)/p(carat)

So in theory, the idea behind it is for resortSelection to, upon the button being clicked, replace {staff_grid} with {staff_grid sort="desc"} but that isn’t working. Nothing happens, and in fact it breaks the ability to filter with the buttons at all. So I assume it has something to do with the EE {} syntax but I don’t know how to address that. My debugger is telling me of all things that a ; is missing from the “desc” part of the function, is it correct or is it misreading something?

Apologies if my code-brain is so bad it hurts your soul, and thanks in advance for any help!