var buttons_in = new Array();
var buttons_out = new Array();

var btn_height = 25;
var btn_width = 110;

buttons_in[0] = new Image(btn_width,btn_height); 
buttons_in[0].src = "img/meny/hjem_hov.gif";

buttons_in[1] = new Image(btn_width,btn_height); 
buttons_in[1].src = "img/meny/nyheter_hov.gif";

buttons_in[2] = new Image(btn_width,btn_height); 
buttons_in[2].src = "img/meny/utgivelser_hov.gif";

buttons_in[3] = new Image(btn_width,btn_height); 
buttons_in[3].src = "img/meny/medlemmer_hov.gif";

buttons_in[4] = new Image(btn_width,btn_height); 
buttons_in[4].src = "img/meny/bli_medlem_hov.gif";

buttons_out[0] = new Image(btn_width, btn_height); 
buttons_out[0].src = "img/meny/hjem.gif";

buttons_out[1] = new Image(btn_width, btn_height); 
buttons_out[1].src = "img/meny/nyheter.gif";

buttons_out[2] = new Image(btn_width, btn_height); 
buttons_out[2].src = "img/meny/utgivelser.gif";

buttons_out[3] = new Image(btn_width, btn_height); 
buttons_out[3].src = "img/meny/medlemmer.gif";

buttons_out[4] = new Image(btn_width, btn_height); 
buttons_out[4].src = "img/meny/bli_medlem.gif";

window.onload = function() {
	initMouseovers();
}

function swapin(e) {
	if (!e) var e = window.event;
	var target = e.target ? e.target : e.srcElement;

	if(target.id != "noswap") 
	{
		target.src = buttons_in[target.id].src;
	}
}

function swapout(e) {
	if (!e) var e = window.event;
	var target = e.target ? e.target : e.srcElement;

	if(target.id != "noswap")
	{
		target.src = buttons_out[target.id].src;
	}
}

function initMouseovers()
{
	var nav = document.getElementById('swap');
	var imgs = nav.getElementsByTagName('img');
	for (var i=0;i<imgs.length;i++)
	{
		imgs[i].onmouseover = swapin;
		imgs[i].onmouseout  = swapout;
	}
}