Question

I’m trying to switch the var “act” withing my function dynamically. I looks OK, but for some reason I keep on getting the same act whether I check the checkbox or uncheck it… Can someone please take a look and see what I’m missing here?

$(".chkbx").change(function() {
    if($(this).attr("checked", true)) {
        var act = "remFromSessionSingleID";
    } else {
        var act = "addToSessionSingleID";
    }

    SelectedContactsInSession(act, $(this).val());          
});

function SelectedContactsInSession(act, id) {           
    $.ajax({
        url: "actions.php",
        type: "POST",
        data: "op="+act+"&contID="+id
    });
}

Answer 1

You’re setting the checked attribute to true by passing it to attr, which then returns a jQuery object (that will always be truthy). Just get the attribute instead:

if($(this).attr("checked")) {

A better way is to use is:

if($(this).is(":checked")) {