window.addEvent('domready', function() {
accordion = new Accordion('div.t1', 'div.t2', {
start:'all-closed',
opacity: false,
duration: 1,
alwaysHide: true,
onActive: function(togglers, stretchers){
togglers.setStyle('background-color', '#f9ecee');
togglers.setStyle('background-image', 'url(ceremony_menu/t1_minus.gif)');
},
onBackground: function(togglers, stretchers){
togglers.setStyle('background-color', '#FFFFFF');
togglers.setStyle('background-image', 'url(ceremony_menu/t1_plus.gif)');
stretchers.setStyle('height', stretchers.offsetHeight);
$$('div.t3').setStyle('height','0');//you close all sub accordion
$$('div.t3o').setStyle('background-color', '#f9ecee');//you also change all styles back
$$('div.t3o').setStyle('background-image', 'url(ceremony_menu/t2_plus.gif)');//you also change all styles back
}
}, $('sidebar'));
accordion1 = new Accordion('div.t3o', 'div.t3', {
start:'all-closed',
opacity: false,
duration: 1,
alwaysHide: true,
onActive: function(togglers, stretchers){
togglers.getParent().setStyle("height", "auto");
togglers.setStyle('background-color', '#faf7f8');
togglers.setStyle('background-image', 'url(ceremony_menu/t2_minus.gif)');
},
onBackground: function(togglers, stretchers){
togglers.setStyle('background-color', '#f9ecee');
togglers.setStyle('background-image', 'url(ceremony_menu/t2_plus.gif)');
stretchers.setStyle('height',stretchers.offsetHeight);
}
}, $('sidebar'));

});