function changeTab(anchor, yearModel){
	if (anchor.id=="aOverview")	{
		document.getElementById("tabOverview").className = "clearfix tabOn";
		document.getElementById("tabSpecifications").className = "tabOff";
		anchor.className = "aOn";
		document.getElementById("aSpecifications").className = "aOff";
	}else{
		document.getElementById("tabSpecifications").className = "tabOn";
		document.getElementById("tabOverview").className = "clearfix tabOff";
		anchor.className = "aOn";
		document.getElementById("aOverview").className = "aOff";
	}
}

window.addEvent('domready', function() {
	//create our Accordion instance
	var myAccordion = new Accordion($('accordion'), 'h3.toggler', 'div.element', {
		opacity: false,
		show: 0,
		alwaysHide: true,
		onActive: function(toggler, element){
			toggler.setStyle('color', '#2a4a6b');
			toggler.setStyle('background', 'url(/certified/images/quickfacts/mostPopular/table_bar_open.gif) no-repeat 0 0');
		},
		onBackground: function(toggler, element){
			toggler.setStyle('color', '#676767');
			toggler.setStyle('background', 'url(/certified/images/quickfacts/mostPopular/table_bar_close.gif) no-repeat 0 0');
		}
	});
	$('collapseAll').addEvent('click', function(event) {
        var myAccordion = new Accordion('h3.toggler', 'div.element', {
            onActive: function(toggler, element){
				toggler.setStyle('color', '#2a4a6b');
				toggler.setStyle('background', 'url(/certified/images/quickfacts/mostPopular/table_bar_open.gif) no-repeat 0 0');
            },
            onBackground: function(toggler, element){
				toggler.setStyle('color', '#676767');
				toggler.setStyle('background', 'url(/certified/images/quickfacts/mostPopular/table_bar_close.gif) no-repeat 0 0');
            }
        });
        myAccordion.hideAll();
		return false;
	});
	
	$('expandAll').addEvent('click', function(){
        var myAccordion = new Accordion('h3.toggler', 'div.element', {
            onActive: function(toggler, element){
				toggler.setStyle('color', '#2a4a6b');
				toggler.setStyle('background', 'url(/certified/images/quickfacts/mostPopular/table_bar_open.gif) no-repeat 0 0');
            },
            onBackground: function(toggler, element){
				toggler.setStyle('color', '#676767');
				toggler.setStyle('background', 'url(/certified/images/quickfacts/mostPopular/table_bar_close.gif) no-repeat 0 0');
            }
        });
        myAccordion.showAll();
		return false;
    });

	
});