// JavaScript Document
var top_div = 5// number of divs you're using

function make_this_top(id){
	top_div ++;
	document.getElementById('home').style.visibility = 'hidden';
	document.getElementById('biography').style.visibility = 'hidden';
	document.getElementById('releases').style.visibility = 'hidden';
	document.getElementById('gallery').style.visibility = 'hidden';
	document.getElementById('contact').style.visibility = 'hidden';
	document.getElementById(id).style.visibility = 'visible';
	document.getElementById(id).style.zIndex = top_div;
}