function arrondir() {
	var content = document.getElementById('site');
	var imgs = content.getElementsByTagName('img');
	for (var i = 0; i < imgs.length; i++) {
		if (imgs[i].className != "pasarrondi" ) {
			var wrapper = document.createElement('div');
			wrapper.className = 'arrondi';
			wrapper.style.width = imgs[i].width+'px';
			wrapper.style.height = imgs[i].height+'px';
			wrapper.style.background = 'url(' + imgs[i].src + ')';
			imgs[i].style.display = 'none';
			var original = imgs[i];
			if(original.parentNode.tagName.toUpperCase()=='A') original = original.parentNode;
			original.parentNode.replaceChild(wrapper, original);
			wrapper.appendChild(original);
		}
	}
}