/// <summary>
        /// Event Handler for btnAddCollege to add a college node where stream = PCM
        /// </summary>
        /// <param name="sender">Object on which event has occured</param>
        /// <param name="e">Args for the event</param>
        protected void btnAddCollege_Click(object sender, EventArgs e)
        {
            //Call the AddCollegeNode() method to add college node where stream = PCM
            bool result = UtilityFunctions.AddCollegeNode(Server.MapPath(Strings.XmlFilePath));

            //Check the result
            if (result)
            {
                Response.Write(Strings.AddCollegeNodeSuccess);
            }
            else
            {
                Response.Write(Strings.AddCollegeNodeFailed);
            }
        }