i'm new to extJS and i'm looking for an example that looks like the API-Document-Browser. This means that there should be a menu (treeview) on the left side and a tabpanel on center-region. Everytime i click on a node in my treeview, a tab opens in the tabpanel. all tabs must be closable, expect of the last, which should be invisible (only the tab, NOT the content ).

My questions: Is there such an example anywhere? Or: How can i link the nodes in the treeview with a tab-open-event and which property must be set, if i want to load another sub-site with ajax in the newly created tab?