function newimage(arg) {
	if (document.images) {
		rslt = new image();
		rslt.src = arg;
		return rslt;
	}
}
function changeimages() {
	if (document.images && (preloadflag == true)) {
		for (var i=0; i<changeimages.arguments.length; i+=2) {
			document.getElementById(changeimages.arguments[i]).src = changeimages.arguments[i+1];
		}
	}
}
var preloadflag = false;
function preloadimages() {
	if (document.images) {
		preloadflag = true;
	}
}