code: function ( sx ) {
  
          if( !this.autoWidth ) return;
  
          this.w = sx;
  
          if( this.simple ){
              //this.sa = 0;
              this.sb = this.w - this.sa;
          } else {
              var pp = this.w * ( this.p / 100 );
              this.sa = Math.floor( pp + 10 );
              this.sb = Math.floor( this.w - pp - 20 );
          }
  
      }
docs: ---------------------- change size ----------------------