Skillopedia_Catalogue = new function()
{   
    Menu = false;
    
    this.holdMenu = function()
    {   
        Menu = true;
    }
    
    this.showMenu = function()
    {
        document.getElementById('category_list').style.display = 'block';
    }
    
    this.hideMenu = function()
    {        
        if ( Menu )
        {
            Menu = false;
            return;
        }
        
        document.getElementById('category_list').style.display = 'none';
    }    
    
    this.showClouds = function(sub)
    {
        document.getElementById('clouds_title').style.display = 'block';
        document.getElementById('categories_title').style.display = 'none';

        document.getElementById('clouds').style.display = 'block';
        document.getElementById('categories').style.display = 'none';

        setCookie('catalogue_switcher', 'clouds', 'Mon, 01-Jan-2050 00:00:00 GMT');
    }

    this.showCategories = function(sub)
    {
        document.getElementById('clouds_title').style.display = 'none';
        document.getElementById('categories_title').style.display = 'block';

        document.getElementById('clouds').style.display = 'none';
        document.getElementById('categories').style.display = 'block';

        setCookie('catalogue_switcher', 'categories', 'Mon, 01-Jan-2050 00:00:00 GMT');
    }
    
    t = document.getElementsByTagName('body')[0];
    
    t.onclick = this.hideMenu;    
}