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) {
		begining_over = newImage("images/begining-over.gif");
		membership_over = newImage("images/membership-over.gif");
		english_over = newImage("images/english-over.gif");
		ukrainian_over = newImage("images/ukrainian-over.gif");
		publications_over = newImage("images/publications-over.gif");
		links_over = newImage("images/links-over.gif");
		directors_over = newImage("images/directors-over.gif");
		purpose_over = newImage("images/purpose-over.gif");
		plans_over = newImage("images/plans-over.gif");
		coordinations_over = newImage("images/coordinations-over.gif");
		preloadFlag = true;
	}
}