// JavaScript Document

function show_div(div_id) { 
// hide all the divs 

document.getElementById('one-content').style.display = 'none'; 
document.getElementById('two-content').style.display = 'none'; 
document.getElementById('three-content').style.display = 'none'; 
document.getElementById('five-content').style.display = 'none';
document.getElementById('four-content').style.display = 'none'; 


// show the requested div 
document.getElementById(div_id).style.display = 'block'; 
document.location="#4"; 
}