code: function ( e ) {
  
          var l = this.local;
          if( l.x === -1 && l.y === -1 ) return '';
  
          this.isReset = false;
  
          var name = '';
  
          var s = this.isScroll ?  this.zone.w  - this.size.s : this.zone.w;
          
          if( l.y > this.zone.h - this.bh &&  l.y < this.zone.h ) name = 'bottom';
          else name = l.x > s ? 'scroll' : 'content';
  
          return name;
  
      }
docs: ---------------------- ZONE TEST ----------------------