<!--
var Open = '';
var Closed = '';
function preload(){
if(document.images){
Open = new Image(20,14); Closed = new Image(20,14);
Open.src = 'but2.png';
Closed.src = 'but1.png';
}}

function showhide (what) {
if (document.getElementById(what + 'outline').style.display=='')
{
document.getElementById(what + 'sign').src=Closed.src;
document.getElementById(what + 'outline').style.display='none';
}
else {
document.getElementById('menu1outline').style.display='none';
document.getElementById('menu2outline').style.display='none';
document.getElementById('menu3outline').style.display='none';
document.getElementById('menu4outline').style.display='none';
document.getElementById('menu1sign').src=Closed.src;
document.getElementById('menu2sign').src=Closed.src;
document.getElementById('menu3sign').src=Closed.src;
document.getElementById('menu4sign').src=Closed.src;
document.getElementById(what + 'sign').src=Open.src;
document.getElementById(what + 'outline').style.display='';
}
}

document.onload=preload();
-->