Pass vars via jQuery to Ajax.ActionLink to Toggle Image via jQuery & MVC

My Solution

As this cant be done the way I wanted, here is a jQuery version for completeness : This will toggle an image if clicked, update the DB via $.Ajax & change image to toggled version

HTML

<a id="HD_FollowingLink">
  <img id="HD_FollowingImage" />
</a>

jQuery & JavaScript

$('#HD_FollowingLink').click(function () {
        // 'Following' Toggle Button has been clicked, get its 'id' & use ajax to toggle DB, display ajax returned data.IsFollowing (which should be toggled)
        var id = $(this).attr('id');              
        $.ajax({
            url: "/Home/ToggleEnabled/" + id,
            type: "POST",
            data: ({ id: id }),
            success: function (data, textStatus) {
                ToggleFollow(data.IsFollowing, id);
            }
        }); //$.ajax end
    });

function ToggleFollow(IsFollowing, id) {
// Called by LoadHoverDivData & HD_FollowingLink $.Ajax calls
$('#HD_FollowingLink').attr("id", id); //Set this id so we can use it in     
$('#HD_FollowingLink').click handler


if (IsFollowing == true) {
$('#HD_FollowingImage').attr("src", "../../Images/tick.png");

} else {
$('#HD_FollowingImage').attr("src", "../../Images/tick_grey.png");
}
};

MVC Action

public ActionResult ToggleEnabled(int id)
{
if (Request.IsAjaxRequest())
{
// Get if party being followed 
int PID = ViewBag.ThisParty.PartyId;
var f = db.Followings.SingleOrDefault(q => q.PartyFollowedID== id && q.ThisPartyId == PID);
f.following = f.following != true;// Toggle bit
db.Entry(f).State = System.Data.EntityState.Modified;
db.SaveChanges();// Save toggled bit back to DB

return Json(new {IsFollowing = f.following });
}
return Content("Error");
}