code: function(inflate) {
          if (this.icon) {
              this.icon.setSize({
                  w: this.icon.size.w * inflate,
                  h: this.icon.size.h * inflate
              });
          }        
      }
docs: Method: inflate
  Englarges the markers icon by the specified ratio.
  
  Parameters:
  inflate - {float} the ratio to enlarge the marker by (passing 2
  will double the size).