// Netventure, http://www.netventure.pl/

if (is.js) {
	images = new Array("zak1", "zak2", "zak3", "zak4");
	for(i=0; i<images.length; i++) {
		eval(images[i] + "_off = new Image()");
		eval(images[i] + "_off.src = '/nav/' + images[i] + '_off.gif'");
		eval(images[i] + "_on = new Image()");
		eval(images[i] + "_on.src = '/nav/' + images[i] + '_on.gif'");
	}
}
function imgOn(imageName) {
	if (is.js) { 
		document[imageName].src = eval(imageName + '_on').src;
	}
}
function imgOff(imageName) {
	if (is.js) {
		document[imageName].src = eval(imageName + '_off').src;
	}
}