function toggle() {
	var ele = document.getElementById("en1_contenu");
	var text = document.getElementById("displayText");
	
	var ele2 = document.getElementById("en2_contenu");
	var text2 = document.getElementById("displayText2");
	if(ele2.style.display == "block") {
    	ele2.style.display = "none";
		ele.style.display = "block";
		//text.innerHTML = "show";
  	}
	else {
    	ele2.style.display = "block";
		ele.style.display = "none";
		//text.innerHTML = "hide";
	}		
}