rewrite-viewport

/*-----------------------------------------------------
* ▼ Viewport ▼
-----------------------------------------------------*/
var Viewport = function() {

  this._ua;
  this._init.apply( this );

}
Viewport.prototype = {

  //-------------------------------------------------
  // initialize
  //-------------------------------------------------
  _init : function() {

    var _ua = {};

    _ua.name = window.navigator.userAgent.toLowerCase();
    _ua.isiPad = _ua.name.indexOf('ipad') >= 0;
    _ua.isAndroid = _ua.name.indexOf('android') >= 0;
    _ua.isTablet = (_ua.isiPad || (_ua.isAndroid && _ua.name.indexOf('mobile') < 0));

    this.update( _ua.isTablet );

  },

  //-------------------------------------------------
  // update
  //-------------------------------------------------
  update : function( i_data ) {

    if ( i_data ) {
      var metalist = document.getElementsByTagName('meta');
      for(var i = 0; i < metalist.length; i++) {
        var name = metalist[i].getAttribute('name');
          if(name && name.toLowerCase() === 'viewport') {
            metalist[i].setAttribute('content', 'width=1000');
          break;
        }
      }
    }

  }


}
/*-----------------------------------------------------
* ▲ Viewport ▲
-----------------------------------------------------*/

var viewport = new Viewport();