n_home = new Image(); 
n_home.src = "images/n_home.gif";
r_home = new Image(); 
r_home.src = "images/r_home.gif";

n_profile = new Image(); 
n_profile.src = "images/n_profile.gif";
r_profile = new Image(); 
r_profile.src = "images/r_profile.gif";

n_work = new Image(); 
n_work.src = "images/n_work.gif";
r_work = new Image(); 
r_work.src = "images/r_work.gif";

n_news = new Image(); 
n_news.src = "images/n_news.gif";
r_news = new Image(); 
r_news.src = "images/r_news.gif";

n_contact = new Image(); 
n_contact.src = "images/n_contact.gif";
r_contact = new Image(); 
r_contact.src = "images/r_contact.gif";

n_join = new Image(); 
n_join.src = "images/n_join.gif";
r_join = new Image(); 
r_join.src = "images/r_join.gif";


function changeImage(imgName, imgSrc){
 document.images[imgName].src = imgSrc.src;
}


//var openImg = new Image();		openImg.src = "images/tree_open.gif";
//var closedImg = new Image();	closedImg.src = "images/tree_close.gif";

function doBranch(num)
{
 branch="b"+num;
 var objBranch = document.getElementById(branch).style;
 if(objBranch.display=="block") objBranch.display="none";
 else objBranch.display="block";
}