function soop() {
	var img, sh, sn, sd
	for (var i = 0; (img = document.images[i]); i++) {
		if (img.getAttribute) {

			sn = img.getAttribute("src");
			sh = img.getAttribute("hsrc");
			sd = img.getAttribute("dsrc");

			if (sn != "" && sn != null) {
				img.n = new Image();
				img.n.src = img.src;
			
				if (sh != "" && sh != null) {
					img.h = new Image();
					img.h.src = sh;
					img.onmouseover = soopOn
					img.onmouseout  = soopOff
				}
			}
		}
	}
}

function soopOn() {
	this.src = this.h.src;
}

function soopOff() {
	this.src  = this.n.src;
}