function ck() {   
    var hy_id = dwr.util.getValue("hy_id");  
    Method.check(hy_id, function(data) {
    dwr.util.setValue("aa", data);
  });
       
}

function downCS(num) {   

  
    var down_id =num; 

    Method.updateDownCS(down_id, function(data) {
     dwr.util.setValue("aa", data);
  });
       
}