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