//the main function, call to the effect object
function init(titre,contenu,balise,valeur)
{
	var stretchers = document.getElementsByClassName(contenu); //div that stretches
	var toggles = document.getElementsByClassName(titre); //h3s where I click on

	//accordion effect
	var myAccordion = new fx.Accordion(toggles, stretchers, {opacity: true, duration: 400} );

	//hash function
	function checkHash()
	{
		var found = false;
		toggles.each(
			function(balise, i)
			{
				if (window.location.href.indexOf(balise.title) > 0)
				{
					myAccordion.showThisHideOpen(stretchers[i]);
					found = true;
				}
			}
		);
		return found;
	}

	if (valeur == undefined) valeur = 0;
	if (!checkHash()) myAccordion.showThisHideOpen(stretchers[valeur]);

}