function menuOuvrir(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}

function affichageOptions() {
	if (document.getElementById('img_options_on').style.visibility == 'hidden') {
		document.getElementById('img_options_off').style.visibility = 'hidden';
		document.getElementById('img_options_off').style.display = 'none';
		
		document.getElementById('img_options_on').style.visibility = 'visible';
		document.getElementById('img_options_on').style.display = 'inline';
		document.getElementById('optionsAff').style.visibility = 'visible';
		document.getElementById('optionsAff').style.display = 'block';
	} else {
		document.getElementById('img_options_off').style.visibility = 'visible';
		document.getElementById('img_options_off').style.display = 'inline';
		
		document.getElementById('img_options_on').style.visibility = 'hidden';
		document.getElementById('img_options_on').style.display = 'none';
		document.getElementById('optionsAff').style.visibility = 'hidden';
		document.getElementById('optionsAff').style.display = 'none';
	}
}

function affichVillesEtapes() {
	if (document.getElementById('listeVillesEtapes').style.visibility == 'hidden') {
		document.getElementById('listeVillesEtapes').style.visibility = 'visible';
		document.getElementById('listeVillesEtapes').style.display = 'block';
		
		document.getElementById('lienVillesEtapes').innerHTML = 'Masquer les villes étapes trouvées';
	} else {
		document.getElementById('listeVillesEtapes').style.visibility = 'hidden';
		document.getElementById('listeVillesEtapes').style.display = 'none';
		
		document.getElementById('lienVillesEtapes').innerHTML = 'Afficher les villes étapes trouvées';
	}
}

function affichageLegende() {
	if (document.getElementById('img_legende_on').style.visibility == 'hidden') {
		document.getElementById('img_legende_off').style.visibility = 'hidden';
		document.getElementById('img_legende_off').style.display = 'none';
		
		document.getElementById('img_legende_on').style.visibility = 'visible';
		document.getElementById('img_legende_on').style.display = 'inline';
		document.getElementById('legendeAff').style.visibility = 'visible';
		document.getElementById('legendeAff').style.display = 'block';
	} else {
		document.getElementById('img_legende_off').style.visibility = 'visible';
		document.getElementById('img_legende_off').style.display = 'inline';
		
		document.getElementById('img_legende_on').style.visibility = 'hidden';
		document.getElementById('img_legende_on').style.display = 'none';
		document.getElementById('legendeAff').style.visibility = 'hidden';
		document.getElementById('legendeAff').style.display = 'none';
	}
}

function afficheListeTrajets(idVille) {
	var xhr_object = null;
	
	url = 'recherche-trajet-ville-ajax.php?idVille='+escape(idVille);
	
	alert(url);
	
	if(window.XMLHttpRequest) {
		xhr_object = new XMLHttpRequest();
	} else {
		if (window.ActiveXObject) {
			try {
				xhr_object = new ActiveXObject("Msxml2.XMLHTTP");
			}
			
			catch (e) {
				xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
			}
		}
	}
         
	xhr_object.open("GET", url, true);

	xhr_object.onreadystatechange = function(){
		if ( xhr_object.readyState == 4 ) {
			document.getElementById('listeTrajets').innerHTML = xhr_object.responseText;
		}
	}
    xhr_object.send(null);
}