function DisplayedCoursesLimiter(numberOfCourseToDisplay)
{
    this.numberOfCourseToDisplay = numberOfCourseToDisplay;

    this.limitNumberOfCourseDisplayed = function(){
        lastCourseToBeDisplayed = ".course:eq(" + (this.numberOfCourseToDisplay-1) + ")";
        if($(lastCourseToBeDisplayed + " + .coursedescription").length != 0)
        {
            $(lastCourseToBeDisplayed + " + .coursedescription").nextAll().hide();
        }else{
            $(lastCourseToBeDisplayed ).nextAll().hide();
        }
    }
}