if (document.images) {
    /*mainMenu*/
    image1on = new Image();
	image1off = new Image();
	image1on.src = "images/main_btns/btn_cegismerteto_on.gif";
	image1off.src = "images/main_btns/btn_cegismerteto_off.gif";
    
    image2on = new Image();
	image2off = new Image();
	image2on.src = "images/main_btns/btn_elerhetosegeink_on.gif";
	image2off.src = "images/main_btns/btn_elerhetosegeink_off.gif";
    
    image3on = new Image();
	image3off = new Image();
	image3on.src = "images/main_btns/btn_termekek_on.gif";
	image3off.src = "images/main_btns/btn_termekek_off.gif";
    
    image4on = new Image();
	image4off = new Image();
	image4on.src = "images/main_btns/btn_technologiak_on.gif";
	image4off.src = "images/main_btns/btn_technologiak_off.gif";
    
    image5on = new Image();
	image5off = new Image();
	image5on.src = "images/main_btns/btn_tanacsok_on.gif";
	image5off.src = "images/main_btns/btn_tanacsok_off.gif";
    
    image6on = new Image();
	image6off = new Image();
	image6on.src = "images/main_btns/btn_szolgaltatasok_on.gif";
	image6off.src = "images/main_btns/btn_szolgaltatasok_off.gif";
    
    
    //upIconMenu*/
    imageup1on = new Image();
	imageup1off = new Image();
	imageup1on.src = "images/btn_home_on.gif";
	imageup1off.src = "images/btn_home_off.gif";

	imageup2on = new Image();
	imageup2off = new Image();
	imageup2on.src = "images/btn_email_on.gif";
	imageup2off.src = "images/btn_email_off.gif";
    
	imageup3on = new Image();
	imageup3off = new Image();
	imageup3on.src = "images/btn_sitemap_on.gif";
	imageup3off.src = "images/btn_sitemap_off.gif";
} 

function changeImages() {
	if (document.images) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
		}}}