this.media(query, handler)

var React = require('react');
var ResponsiveMixin = require('react-responsive-mixin');

var Component = React.createClass({
  mixins: [ResponsiveMixin],
  getInitialState: function () {
    return { url: '/img/large.img' };
  },
  componentDidMount: function () {
    this.media({maxWidth: 600}, function () {
      this.setState({url: '/img/small.jpg'});
    }.bind(this));
    this.media({minWidth:601, maxWidth: 1024}, function () {
      this.setState({url: '/img/medium.jpg'});
    }.bind(this));
    this.media({minWidth: 1025}, function () {
      this.setState({url: '/img/large.jpg'});
    }.bind(this));
  },
  render: function () {
    return <img src={this.state.url} />;
  }
});