internal CMS_Suppliers SuppliersDialog
        {
            get
            {
                if(this.SuppliersControl == null)
                {
                    this.SuppliersControl = new CMS_Suppliers();
                    this.CMS_Panel.Controls.Add(this.SuppliersControl);
                    this.SuppliersControl.Dock = DockStyle.Fill;
                }

                return this.SuppliersControl;
            }
        }