function changeFontSize(size) {
    if (size == 'large') {
        $('#content').removeClass('small-font');
        $('#content').addClass('large-font');

    } else {
        $('#content').removeClass('large-font');
        $('#content').addClass('small-font');
    }
    
    document.cookie = 'font_size='+size+'; path=/';
}


function openSubMenu(node) {
    
    var el = $('#menu-'+node+'+li');

    if (el.hasClass('subnode-lunch')) {
        el.removeClass('subnode-lunch');
    }

    if (el.hasClass("subnode-closed")) {
        el.removeClass('subnode-closed');
        el.addClass('subnode-opened');
    } else {
        el.removeClass('subnode-opened');
        el.addClass('subnode-closed');
    }

    $('#menu-'+node+'+li > ul').toggle('fast');

}


function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}