function changeImages() {
	if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

function popWindow(url,Wwidth,Wheight) {
small_window = window.open(url,"small_window"+Wwidth+"x"+Wheight,'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=auto,resizable=1,width=' + Wwidth + ',height=' + Wheight + ',screenX=0,screenY=0');
small_window.focus();
}