var togglerSelected;

Element.Properties.invisible = { 
	get: function() { return this.get('opacity') == 0; }, 
	set: function() { this.setStyle('opacity',  0); } 
};
Element.Properties.visible = { 
	get: function() { return this.get('opacity') == 1; }, 
	set: function() { this.setStyle('opacity',  1); } 
};
window.addEvent('domready', function() {
	$('toolbar-accordion').setStyle('display', 'block');
	
	var myAccordion = new Accordion($('toolbar-accordion'), 'h3.toggler', 'div.element', {  
		start: 'all-closed',
		display: -1,
		opacity: false,
		onActive: function(toggler, element) {
			togglerSelected = toggler;
		},  
		onBackground: function(toggler, element) { toggler.setStyle('color', '#135a26'); }
	});
		if (firstElementIndex!=-1) {
			myAccordion.display(firstElementIndex);
	}
	});