var cssNode = document.createElement('link');
    cssNode.setAttribute('rel', 'stylesheet');
    cssNode.setAttribute('type', 'text/css');
    cssNode.setAttribute('href', 'javascript-overrides.css');
	document.getElementsByTagName('head')[0].appendChild(cssNode);




function toggleNav(toggler) 
	{
	if(document.getElementById) 
		{
		targetElement = toggler.nextSibling;
		
		if(targetElement.className == undefined) 
			{
			targetElement = toggler.nextSibling.nextSibling;	
			}	

		if (targetElement.style.display == "block")
			{
			targetElement.style.display = "none";
			}
		
		else
			{
			targetElement.style.display = "block";
			}
		}
	}