function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

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 popup(url)
{
window.open(url,"Popup","width=590,height=520,directories=no,toolbar=no,resizable=no,menubar=no,scrollbars=yes")
}