activateMenu = function(nav) { 
/* currentStyle restricts the Javascript to IE only */
	if (document.all &&
 document.getElementById('nav').currentStyle) {  
        var navroot = document.getElementById('nav');
        
        /* Get all the list items within the menu */

        var lis=navroot.getElementsByTagName("LI");  
        for (i=0; i < lis.length; i++) {
        
           /* If the LI has another menu level */
            if(lis[i].lastChild.tagName=="UL"){
            
                /* assign the function to the LI */
             	lis[i].onmouseover=function() {	
                
                   /* display the inner menu */
                   this.lastChild.style.display="block";
                }
                lis[i].onmouseout=function() {   
                   this.lastChild.style.display="none";
                }
            }
        }
    }
}
window.onload= function(){
    /* pass the function the id of the top level UL */

    /* remove one, when only using one menu */
    activateMenu('nav'); 
    activateMenu('vertnav'); 
}

function sidenav_toggle(id)
{
	obj = document.getElementById(id);
	if(obj) 
	{
		if(obj.className == '') 
		{
			obj.className = 'closed';
		}
		else 
		{
			obj.className = '';
		}
	}
}