function createRequestObjectLoc() {
	var ro;	
	var browser = navigator.appName;
	
	if(browser == "Microsoft Internet Explorer"){
		ro = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		ro = new XMLHttpRequest();
	}
	return ro;
}
var xmlreq = createRequestObjectLoc();	

function getVilles(isChangeable) {	
	region = document.getElementById('laRegion').value; 	

	len = region.length
	pos = region.indexOf("-",0);
	region = region.substring(pos+1,len) ;
	
	xmlreq.open('get', 'requetesAjax/getListeDeroulante.asp?parent='+region+'&liste=villes&isChangeable='+isChangeable);		
	xmlreq.onreadystatechange = returnOptSelectVilles;
	xmlreq.send(null);
	
}

function returnOptSelectVilles() {	
	if(xmlreq.readyState == 1){
		document.getElementById("loadingGif").innerHTML = "<img src='../images/ajax-loader_small_white.gif' alt='animation de chargement' />";
	}
	if(xmlreq.readyState == 4){
		var response = xmlreq.responseText;			
		document.getElementById("optSelectVilles").innerHTML = response;
		document.getElementById("loadingGif").innerHTML = "";
	}   
}

function getSecteurs(isChangeable) {	
	ville = document.getElementById('laVille').value; 
    xmlreq.open('get', 'requetesAjax/getListeDeroulante.asp?parent='+ville+'&liste=secteurs&isChangeable='+isChangeable);		
    xmlreq.onreadystatechange = returnOptSelectSecteurs;
    xmlreq.send(null);
}

function returnOptSelectSecteurs() {	
	if(xmlreq.readyState == 1){
		document.getElementById("loadingGif").innerHTML = "<img src='../images/ajax-loader_small_white.gif' alt='animation de chargement' />";
	}
	if(xmlreq.readyState == 4){
		var response = xmlreq.responseText;			
		document.getElementById("optSelectSecteurs").innerHTML = response;
		document.getElementById("loadingGif").innerHTML = "";
	}   
}