function select_inscription(categorie)
{
	if(window.XMLHttpRequest) // FIREFOX
		xhr_object = new XMLHttpRequest();
	else if(window.ActiveXObject) // IE
		xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
	else
		return(false);
		xhr_object.open("GET", "includes/inscription.select.php?categorie="+categorie, false);
		xhr_object.send(null);
	if(xhr_object.readyState == 4) 
		document.getElementById('sous_categorie_div').innerHTML = xhr_object.responseText;
	else return(false);
}