// JavaScript Document

// nav menu
//------------------------------
function toggle(id) {
	var y=document.getElementById('menu')
	var x=y.getElementsByTagName('dd')
	
	var e = document.getElementById(id);
	
	if(e.style.display == 'block') {
	  e.style.display = 'none';
	  f = e.previousSibling;
	  f.getElementsByTagName('div')[0].innerHTML = '[+]';
	}
	else {
	  e.style.display = 'block';
	  f = e.previousSibling;
	  f.getElementsByTagName('div')[0].innerHTML = '[-]';
	}
}