Add-on to Google Keyword Tool

I would like to add a new column to the results table produced by Google keyword tool. Look at the attached image. The table has 5 columns: selection, keyword, competition, "Global...", and the last one "...CPC". I would like a 6th column added, with the result of "Global..." times "...CPC". This could be achieved as follows: Create a bookmarklet that dynamically loads a Javascript source file (from a hardcoded location). JQuery is already available in the page. (I'm using Chrome). Inspect the DOM, and find the table (id=gwt-debug-ideas-table). Add a new <td> element to the header. Loop through all the table rows. Get Global value and CPC. Multiply this values. Add a new <td> element to each one of the rows with the resulting multiplication. That is all! Optional: Package this as a Chrome "content-script" extension.