Making a update in a ancestor node

Hi all,

I'm doing a custom index using the APP. In this index, I need to display the titles, some element's attribute and the respective pages. For this, I'm getting this informations on the element's and save in a 'application.variables'. The problem is that the index I'm doing, is render before I do it. Is there anyway for I use the informations I've saved to update the index?