function afficher(id,id2,url) {

	var zone = document.getElementById(id);
	var image = document.getElementById(id2);

	if (zone.style.display == 'none')
	{
		zone.style.display = '' ;
		image.innerHTML = '<img src="'+ url +'fleche_bas.gif" alt="-" title="Plus d\'informations" onClick="afficher(\''+ id + '\',\'' + id2 + '\',\'' + url + '\')" />';
	} else {
		zone.style.display = 'none' ;
		image.innerHTML = '<img src="'+ url +'fleche_droite.gif" alt="+" title="Plus d\'informations" onClick="afficher(\''+ id + '\',\'' + id2 + '\',\'' + url + '\')" />';
	}
}

function afficher2(id,id2,url) {

	var zone = document.getElementById(id);
	var image = document.getElementById(id2);

	if (zone.style.display == 'none')
	{
		zone.style.display = '' ;
		image.src = url +'fleche_bas.gif';
	} else {
		zone.style.display = 'none' ;
		image.src = url +'fleche_droite.gif';
	}
}

function activerChamp(id1,id2) {
	var champ1 = document.getElementById(id1);
	var champ2 = document.getElementById(id2);
	
	if (id2 == 'tache_localisation') {
	
		if (champ1.value == '2')
		{
			champ2.disabled = false;
		} else {
			champ2.disabled = true;
			champ2.value = '';
		}
	
	} else {
		if (champ1.value == '0')
		{
			champ2.disabled = false;
		} else {
			champ2.disabled = true;
			champ2.value = '';
		}
	}
}

function afficherCacher(id,id2,id3) {

		var div = document.getElementById(id);
		var img1 = document.getElementById(id2);
		var img2 = document.getElementById(id3);
		
		if (div.style.display == "block") {
			div.style.display = "none";
			img1.src = "themes/images/fleche_droite.gif";
			img2.src = "themes/images/fleche_gauche.gif";
		} else {
			div.style.display = "block";
			img1.src = "themes/images/fleche_bas.gif";
			img2.src = "themes/images/fleche_bas.gif";
		}
}