function fn_img(obj, width) {
	if (!obj) return;
	if (!width) {
		width = obj.clientwidth * 0.9;
		if (width < 720) return;
		/*����ͼƭ���޶����*/
	}

	img_items = obj.getelementsbytagname("img");
	if (img_items) {
		for (i = 0; i < img_items.length; i++) {
			$(img_items[i]).attr("style", "margin:" + img_items[i].vspace + "px " + img_items[i].hspace + "px;");
			//ͼƭ��с����
			var s_width = img_items[i].width;
			var s_height = img_items[i].height;
			if (s_width > width) {
				img_items[i].style.width = width + "px";
				if (s_height == img_items[i].height) {
					img_items[i].style.height = ((width / s_width) * img_items[i].height) + "px";
				}
			}
		}
	}
}

function selfadaptation_size() {
	content_img_width = 720;
	if (typeof (content_img_width) == 'undefined')
		fn_img(document.getelementbyid("contents"));
	else
		fn_img(document.getelementbyid("contents"), content_img_width);
	fn_img(document.getelementbyid("contents"));
}

if (window.addeventlistener)
	window.addeventlistener("load", selfadaptation_size, false);
else if (window.attachevent)
	window.attachevent("onload", selfadaptation_size);
else
	window.onload = selfadaptation_size;