US Patent 8429521 Scrolling in large hosted data set

A computer-implemented method of presenting an electronic document via a web browser includes maintaining on a computing device a client data model of the electronic document, the client data model comprising data that defines content of the electronic document and formatting of the content of the electronic document, and rendering a first sub-portion of content of the electronic document from the client data model to a document object model (DOM) for the web browser. The method also includes providing the DOM to the web browser, for the web browser to display a view of the electronic document from the DOM.