// JScript 文件

                function  secBoard(n)
                {

                   if( n==0 )
                   {
                        header_banner_line.style.display = "block"; 
                        header_banner_company.style.display = "none";                        
                        header_banner_dian.style.display = "none";
                   }
                   else if(n==1 )
                   {
                        header_banner_line.style.display = "none"; 
                        header_banner_company.style.display = "block";                        
                        header_banner_dian.style.display = "none";
                   } 
                   else
                   {
                       header_banner_line.style.display = "none"; 
                        header_banner_company.style.display = "none";                        
                        header_banner_dian.style.display = "block";
                   }
                  
                }