function getXMLHTTP(){
  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) {
      try {
        xhr = new ActiveXObject("Microsoft.XMLHTTP");
      } catch (e1) {
        xhr = null;
      }
    }
  }
  return xhr;
}

function sortie(id) {
	var _xmlHttp = null;
	if(_xmlHttp&&_xmlHttp.readyState!=0){
		_xmlHttp.abort()
	}
	_xmlHttp=getXMLHTTP();
	if(_xmlHttp){
		_xmlHttp.open("GET","http://www.catoo.net/actions/out.php?id="+id,true);
		_xmlHttp.send(null)
	}	
}