function auth()
{
	$("#form-mod-authentification").validate({
		rules: {
			id: "required",
			mdp: "required"
		},
		messages: {
			id: "Entrez un identifiant",
			mdp: "Entrez un mot de passe"
		}
	});
	
    if($("#form-mod-authentification").valid())
	{
    	$('#form-mod-authentification').submit(function () {
            return false;
        });
    	
    	$.ajax({
    		type: "POST",
    		data: $("#form-mod-authentification").serialize(),
    		url: racine+"auth/index",
    		success: function(msg){
    			window.location.replace(racine+"admin");
    	   	},
    	   	error: function(msg){
    	   		alert( "failed" );
    	   	}
    	})    	
	}
	
}