Running Javascript on the Webview Child whose parent is also a Android Browsers webview

I am working on the Google's open source Android Browser, i am working for a requirement, where i need to show some content into a new webview like a popup dialog. I shall pass some HTML data to the Webiview. I am having some JS within HTML content but the JScript is running on the main page not on the custom webview i created. Plea开发者_StackOverflow社区se show some way out for it.

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Any JScript can be run on the webview, provided we have a script tag embedded in the HTML content rendered on custom webiew created.

Cheers