13. The computer system of claim 12 , wherein the document is a document selected from a group consisting of a spreadsheet, a word processing document, a slide presentation document, and a Web page.
13. The computer system of claim 12 , wherein the document is a document selected from a group consisting of a spreadsheet, a word processing document, a slide presentation document, and a Web page. 14. The computer system of claim 13 , wherein the document is a spreadsheet and the element is a cell in the spreadsheet.