Bootstrap modal in Liferay

I use Bootstrap 2.3.2 and Liferay 6.2 bundled with Tomcat. I have some modal windows with complex body structure created in Bootstrap 2.3.2 and I would like to use them in my portal. Here is said that Liferay uses Bootstrap 2.3.2 css, but not Bootstrap 2.3.2 javascript and components like modals, tooltips, tabs, ... are included in AlloyUI.

I included Bootstrap 2.3.2 javascript and tried to use my modal windows, but if I want to show a modal window it doesn't appear. I would like to ask, how can i show native bootstrap modals in Liferay.