Get element style in string

You have an element. You want to get the style applied into it. Where the format is string

eg: <a id="hupla1" style="width: 300px;">HELLO</a>

So you want to get "width: 300px;"

I refer from here http://objjob.phrogz.net/css/object/243 maybe you can find better solution and any alternative.

But my solution is document.getElementById('hupla1').style.cssText