Read runtime generated controls using classname with JQuery

 $('.ClassName').live('click', function (e) {
        e.preventDefault();
        //  blockScreen(this.id);
        var indexid = this.id.split('-');
        var name = this.name;
         $('ID').html("<image style=' margin-top:35px; padding-bottom:40px' src='images/loaderNew.gif' alt='Loading' ></image>");
        $.ajax({
            type: "POST",
            url: "ABC.aspx",
            data: { cIndex: indexid[1], Details: details },
            success: ShowPopup,
            error: function (XMLHttpRequest, textStatus, errorThrown) {
                //error message
            }
        });
    });

function ShowBookNowPopup(resp) {
        $(blockId).html(resp);
        $(blockId).show();

    }