[Aetae]

var element = document.body;
alert(element.currentStyle.width || window.getComputedStyle(element, null).width);

ошибка: element.currentStyle is undefined

Да и не о том вас спрашивали.

g-smagin
Google:
http://www.quirksmode.org/dom/changess.html
http://stackoverflow.com/questions/3...ith-javascript