InvokeScript

http://stackoverflow.com/questions/1437251/calling-a-javascript-function-in-the-c-sharp-webbrowser-control

http://stackoverflow.com/questions/153748/how-to-inject-javascript-in-webbrowser-control

http://stackoverflow.com/questions/4517460/how-to-execute-custom-javascript-in-webbrowser-control

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Let's talk about MVVM: http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/b1a8bf14-4acd-4d77-9df8-bdb95b02dbe2