var top_menu_img=new Array('top_sitemap','top_sitemap_h','top_kontakt','top_kontakt_h',
'top_produkty','top_produkty_h','top_charakterystyki','top_charakterystyki_h',
'top_partner','top_partner_h','top_firma','top_firma_h','top_lokalizacja','top_lokalizacja_h');

var top_menu_img_array=new Array(top_menu_img.length);
for (i=0; i<top_menu_img_array.length; i++)
{
	top_menu_img_array[i]=new Image();
	top_menu_img_array[i].src="img/"+top_menu_img[i]+".gif";
}

function rollon(imgId,imgNo)
{
	if (document.images) {
		imgId.src = top_menu_img_array[imgNo*2+1].src;
	}
}

function rolloff(imgId,imgNo)
{
	if (document.images) {
	imgId.src = top_menu_img_array[imgNo*2].src;
	}
}