Jhistory - work with browser back and forward button

gistfile1.js

jQuery(document).ready(function() {								
								
    jQuery(window).on('popstate',function(event) {
					
       event.preventDefault();
       var eventData = event.originalEvent.state;
					
       if(eventData === null) {
	   jQuery('#content').html('');
       }else{
	   console.log(eventData);
       }
					
    });
				
});