var	preloadFlag = false;

function test() {
	window.alert('Test OK');
}

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

function preloadNav() {
	if (document.images) {
		prev_over = newImage('prev_over.gif');
		next_over = newImage('next_over.gif');
		preloadFlag = true;
	}
}


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];
		}
	}
}