post-formats.js

// Create the media frame.
  		mediaFrame = wp.media.frames.formatMedia = wp.media({
				frame : 'select',
				displaySettings: true,

				// Set the title of the modal.
				title: $el.data('choose'),

				// Tell the modal to show only items matching the current mime type.
				library: {
					type: mime
				},

				// Customize the submit button.
				button: {
					// Set the text of the button.
					text: $el.data('update')
				}
			});