function nav(e) {
    if (document.getElementById(e).style.display == 'none') {
        document.getElementById(e).style.display = 'block';
    } else {
        document.getElementById(e).style.display = 'none';
    }
}

function hideall() {
        var Nodes = document.getElementsByTagName('ul')
        var max = Nodes.length
        for(var i = 0;i < max;i++) {
                var nodeObj = Nodes.item(i)
                nodeObj.style.display = 'none';
        }
}



// Set the "user" cookie based on the user's input.
function setLoginCookie(c_name,value,expiredays)
{
var exdate=new Date();
exdate.setDate(exdate.getDate()+expiredays);
document.cookie=c_name+ "=" +escape(value)+"; expires="+exdate.toGMTString();
}


function getLoginCookie(c_name)
{
if (document.cookie.length>0)
  {
  c_start=document.cookie.indexOf(c_name + "=");
  if (c_start!=-1)
    {
    c_start=c_start + c_name.length+1;
    c_end=document.cookie.indexOf(";",c_start);
    if (c_end==-1) c_end=document.cookie.length;
    return unescape(document.cookie.substring(c_start,c_end));
    }
  }
return "";
}

function createNewDoc()
  {
  var newDoc=document.open("text/html","replace");
  var txt="<br>Learning about the DOM is FUN!<br>";
  newDoc.write(txt);
  newDoc.close();
  }