function switchMenu(obj) {
    var el = document.getElementById(obj);
    var Ael = document.getElementById(obj + "A");
    if (el.style.display != 'none') 
	{
	    el.style.display = 'none';
	    Ael.style.backgroundImage = 'url(icons/plus.gif)';
	}
	else 
	{
    	el.style.display = '';
    	Ael.style.backgroundImage = 'url(icons/minus.gif)';
 }
}
function ShowLi(obj) {
    var el = document.getElementById(obj);
    el.style.visibility = 'visible';
    el.style.height = 'auto';
    el.style.width = '360px';
    el.style.backgroundColor = '#cdd9e3';
    el.style.padding = '5px';
    el.style.listStyleType = 'none';
    el.style.margin = '5px';
}
function HideLi(obj) {
    var el = document.getElementById(obj);
    el.style.visibility = 'hidden';
    el.style.height = '0px';
    el.style.padding = '0px';
    el.style.margin = '0px';
}