function ValidateCheckBoxList(sender, args)
        {
            var objCheckBoxList = document.getElementById('cblInscriptionSite');
         
            if(objCheckBoxList != null)
            {
                for(var i = 0; i <= objCheckBoxList.cells.length - 1; i++)
                {
                    if((objCheckBoxList.cells[i].children[0].checked == true))
                    {
                        
                                args.IsValid = false;
                                return;
                           
                       
                       
                    }
                }
                    
            }
        }