WebGL - HTML & JS

Hi,
I’m new to the WebGL business and I’m also new to HTML and JavaScript-ing. Can you please recommend a good HTML5 working environment so that I can check my html page for errors - HTML/DOM syntax errors and JavaScript compilation errors.

Thanks,
Avi

Chrome browser - you have console there and other nice tools.
As a IDE I recommend Eclipse + Aptana plugin - it is able to highlight syntax errors and even use JsLint.