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[changeImages.arguments[i]].src = changeImages.arguments[i+1];}}
}
var preloadFlag = false;

function preloadImages() {
	if (document.images) {
		preloadFlag = true;
	}
}