Fallback for non-JavaScript browsers

[jassa]

"To degrade gracefully when JavaScript is not enabled you can include the real image tag inside <noscript> block."

Example:

<img src="img/grey.gif" data-original="img/example.jpg"  width="640" heigh="480">
<noscript><img src="img/example.jpg" width="640" heigh="480"></noscript>