globalAttachEvent(window, 'onload', function(){
	var arrayOElt = document.getElementsByClassName('univers', 'div', document.getElementById('contenu')) ;
	for (var i=0;i<arrayOElt.length;i++) {
		arrayOElt[i].onmouseover = function(){
			var oElt = document.getElementsByClassName('menu_univers', 'div', this)[0] ;
			if ( oElt ) oElt.style.display = 'block' ;
		} ;
		arrayOElt[i].onmouseout = function(){
			var oElt = document.getElementsByClassName('menu_univers', 'div', this)[0] ;
			if ( oElt ) oElt.style.display = 'none' ;
		} ;
	}
}) ;