// JavaScript Document
// This is the code for the back and forward buttons on each page
historyObj = window.history

h = window.history;

function go_back()
{
 
if ( h.length ) { // if there is a history
 
    h.back();     // equivalent to clicking back button
}
}

function go_next()
{
 
if ( h.length ) { // if there is a history
 
    h.forward();     // equivalent to clicking forward button
}
}