function getXhr(){

                                var xhr = null; 

				if(window.XMLHttpRequest) // Firefox et autres

				   xhr = new XMLHttpRequest(); 

				else if(window.ActiveXObject){ // Internet Explorer 

				   try {

			                xhr = new ActiveXObject("Msxml2.XMLHTTP");

			            } catch (e) {

			                xhr = new ActiveXObject("Microsoft.XMLHTTP");

			            }

				}

				else { 

				   alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest..."); 

				   xhr = false; 

				} 

                                return xhr;

			}

			

			

			function depart(){

				var xhr = getXhr();

				xhr.onreadystatechange = function(){

					if(xhr.readyState == 4 && xhr.status == 200){

						leselect = xhr.responseText;

						document.getElementById('divcity').innerHTML = leselect;

					}

				}

				

				xhr.open("POST","lieu/departement.php",true);

 

				xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');

				sel = document.getElementById('countryid');

				countryid = sel.options[sel.selectedIndex].value;

				xhr.send("countryid="+countryid);

			}

			

			

			

			function ville(){

				var xhr = getXhr();

				xhr.onreadystatechange = function(){

					if(xhr.readyState == 4 && xhr.status == 200){

						leselect = xhr.responseText;

						document.getElementById('divarea').innerHTML = leselect;

					}

				}

				

				xhr.open("POST","lieu/ville.php",true);

 

				xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');

				sel = document.getElementById('cityid');

				cityid = sel.options[sel.selectedIndex].value;

				xhr.send("cityid="+cityid);

			}