NAMES = Array("ofirmie", "naszaoferta", "transformatory", "kontakt", "stronaglowna");

function preload(){
	curr = "";
	vArray = new Array();
	tArray = new Array();
	upload = new Array();

	for (i=1; i<=NAMES.length; i++){
		name = NAMES[i-1];
		vArray[name] = new Image();
		vArray[name].src= "menu/menu-over_0" + i +".gif";
		tArray[name] = new Image();
		tArray[name].src= "menu/menu-out_0" + i +".gif";
		upload[name] = true;
	};
};

function extude(name){
	if (upload[name])
		document.images[name].src = vArray[name].src;
};

function flatten(name){
	if (upload[name] && name!=curr)
		document.images[name].src = tArray[name]	.src;
};