$(document).ready(function() {
    $(".pdf_add_remove").click(function(e) {
        e.preventDefault();
        linkClicked = $(this);
        idOfPdf = $(this).attr("id");
        if ($(this).hasClass("add")) {
            url = "/ajax/pfdDownloadAddRemove.aspx?type=add&id=" + idOfPdf;
            //alert(url);
            $.ajax({
                url: url,
                cache: false,
                success: function(data) {
                    //alert("adding to session");
                    linkClicked.removeClass("add").addClass("remove").html("Remove from PDF");
                }
            });
        } else if ($(this).hasClass("remove")) {
            url = "/ajax/pfdDownloadAddRemove.aspx?type=remove&id=" + idOfPdf;
            //alert(url);
            $.ajax({
                url: url,
                cache: false,
                success: function(data) {
                    //alert("removing from session");
                    linkClicked.removeClass("remove").addClass("add").html("Add this page to my PDF");
                }
            });
        }
    });



});