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) {
		i1 = newImage("images/r15m_04-over.gif");
		i2 = newImage("images/r15m_05-over.gif");
		i3 = newImage("images/r15m_06-over.gif");
		i4 = newImage("images/r15m_07-over.gif");
		i5 = newImage("images/r15m_08-over.gif");
		i11 = newImage("images/r15f_09-over.gif");
		i12 = newImage("images/r15f_10-over.gif");
		i13 = newImage("images/r15f_06-over.gif");
		i14 = newImage("images/r15f_07-over.gif");
		i15 = newImage("images/r15f_08-over.gif");
		
		sb_instant_over = newImage("images/sb-instant-over.jpg");
		sprava_domeny_over = newImage("images/sprava-domeny-over.jpg");
		sb_hosting_over = newImage("images/sb-hosting-over.jpg");

		preloadFlag = true;
	}
}