function ChangerImage() {

    var RegExp = /images\/([0-9])\.jpg$/;

    var NumeroImage = parseInt($("#photohaut").attr("src").match(RegExp)[1]);
    

    if(NumeroImage == 4) {
        NumeroImage = 1;
    } else {
        NumeroImage = NumeroImage + 1 ;
    }
    
    $("#photohaut")[0].src = "images/"+NumeroImage+".jpg";
    
    setTimeout("ChangerImage()", 3000);

}

$(document).ready(function(){
    $("#photohaut")[0].src = "images/1.jpg";
    setTimeout("ChangerImage()", 3000);
});