$('.image_list a, #fullscreen_image').live('click', function() {
	toggle(this);
});

function toggle(a) { 
    if ($('#fullscreen').css('display') == 'block') {
        $('#fullscreen, #fullscreen_image').css('display', 'none');
	    
    } else {
        if (a.length == 0) return;
        
        $('#fullscreen, #fullscreen_image').css('display', 'block');
        $('#fullscreen_image').css({'background':'url(' + $(a).find('img').attr('alt') + ') no-repeat 50% 50%'})
        $('.selected').removeClass('selected');
    	$(a).addClass('selected');
    }
};