( function () {
	'use strict';

	function invertSelections() {
		var form = document.getElementById( 'choose_pages' ),
			numElements = form.elements.length,
			i,
			curElement;

		for ( i = 0; i < numElements; i++ ) {
			curElement = form.elements[ i ];

			if ( curElement.type === 'checkbox' && curElement.id !== 'create-redirect' &&
				curElement.id !== 'watch-pages' && curElement.id !== 'doAnnounce' ) {
				form.elements[ i ].checked = form.elements[ i ].checked !== true;
			}
		}
	}

	$( function () {
		$( '#replacetext-invert' )
			.on( 'click', invertSelections )
			.prop( 'disabled', false );
	} );
}() );