function visibilite(thingId){
	var targetElement;
	targetElement = document.getElementById(thingId) ;
	if (targetElement.style.display == "none"){
		targetElement.style.display = "" ;
	}
	else {
		targetElement.style.display = "none" ;
	}
	
	var obj = {
			width:700,
			height:379,
			className: "mypopin",
			loaderImg : '/media/gabarit/ajax-loader.gif',
			onComplete: function() {}
		}
		var a = $('#popup a');
		a.popin(obj);
		a.each (function () {a.popup();});
}