function getInfo(i) {
    $.ajax({
        type: 'POST',
        url: '/svc/courses.asmx/CourseDescription',
        data: "{'courseId':" + "'" + i + "' }",
        contentType: 'application/json; charset=utf-8',
        dataType: 'json',
        success: function(c) {
            courseInfo(i, c);
        }
    });
}

function courseInfo(i, c) {
    $("#CourseDescription").empty();
    $("#CourseDescription").append(c);
}