<script language = javascript>
   function getsmall(id)
      {  
      var i ;     
      // 注意id 的类型
      for (i= 0;i<=11;i++)  
        
        {      
            if (i!=id)        
            {       
            str = "document.all.school"+i+".style.display ='none'";
            window.execScript str;
                          
            }     
        }  
      }
</script>