var number = 1;
function addArrangementPluspayment() {
var pluspayment = $(".arrangementPluspayment:first").clone(true);
$(pluspayment).children().children("input").val("");
$(pluspayment).children().children("input").name = 'pluspayment_title_photo' + number;
$(".arrangementPluspayments").append(pluspayment);