code: function ( value ) {
              //ie9, 크롬, 사파리, 파폭
              if ( typeof window.pageXOffset === 'number' ) {
                  this.scrollLeft = function ( value ) {
                      var el = this.element();
      
                      if ( el === window || el === document ) {
                          //setter
                          if ( typeof value === 'number' ) {
                              window.scrollTo( value, window.pageYOffset );
                              //getter
                          } else {
                              return window.pageXOffset;
                          }
                      } else {
                          //setter
                          if ( typeof value === 'number' ) {
                              el.scrollLeft = value;
                              //getter
                          } else {
                              return el.scrollLeft;
                          }
                      }
                  };
              } else {
                  this.scrollLeft = function ( value ) {
                      var el = this.element();
      
                      if ( el === window || el === document ) el = document.documentElement;
                      //setter
                      if ( typeof value === 'number' ) {
                          el.scrollLeft = value;
                          //getter
                      } else {
                          return el.scrollLeft;
                      }
                  };
              }
              return this.scrollLeft( value );
          }
docs: 타겟타입:(Selector, Element)
  대상의 스크롤된 X좌표 설정하거나 반환, window 지원
  @param	{Number}	value
  @return	{Number}