How do I detect if jQuery is in a document navigated to in the WinForm WebBrowser control?

I have a Windows Forms application in C#/Visual Studio 2008 with an IE WebBrowser control. In the DocumentCompleted event, I want to search the WebBrowser.Document or WebBrowser.DomDocument to see if jQuery is already present in the page.

What's a good way to accomplish this?

Thanks!

From stackoverflow

• Did you try:

  bool hasjQuery = webBrowser1.Document.InvokeScript("jQuery") != null;
  

  ZeroBugBounce : Thanks!, I'll mark you as the answer as soon as I can test it in a few cases.