gistfile1.js

<aui:script>
	Liferay.provide(
		window,
		'<portlet:namespace />openPopupWindow',
		function(url, title, id) {
			var instance = this;
			
			Liferay.Util.openWindow(
				{
					cache: false,
					dialog: {
						align: Liferay.Util.Window.ALIGN_CENTER,
						width: '90%',
						modal: true
					},
					id: 'addPopUpDialog',
					title: title,
					uri: url
				}
			);
		},
		['liferay-util-list-fields', 'liferay-util-window']
	);
</aui:script>