How to suppress javascript error/warning popup message window

[aashish.lg]

I am using QWebKit to display the HTML pages which has some java scripts also.
Sometime I am getting javascript error/warning pop up message window, I just wanted to suppress them, so that user will not get notified about these.
Please suggest a way to do this.

Regards
Ashish

[akonradwesolutions]

You can subclass [[Doc:QWebPage]] and reimplement the javaScriptAlert() method to suppress the message boxes triggered by alert().