$(document).ready(function() {

        $('.accordian_header').click(ShowPanel);
        $('.hide-all').click(HideAll);
        $('.show-all').click(ShowAll);
    });
    
   function ShowPanel(e) 
    {
        var currentClass = $(e.target)[0].className.split(' ')[1]
        $('.accordian_content.'+currentClass).toggle();
        $(e.target).toggleClass('opened');
    }
    
   function ShowAll() 
    {
        $('.accordian_content').show();
        $('.accordian_header').toggleClass('opened');

    }
    
   function HideAll() 
    {
        $('.accordian_content').hide();
        $('.accordian_header').toggleClass('opened');

    }