$(document).ready(function () {
    $("#name").focus(function() {
        if( $("#name").attr("value") == "Name" ) {
            $("#name").attr("value", "");
        }
    });
    $("#surname").focus(function() {
        if( $("#surname").attr("value") == "Surname" ) {
            $("#surname").attr("value", "");
        }
    });
    $("#email").focus(function() {
        if( $("#email").attr("value") == "E-mail" ) {
            $("#email").attr("value", "");
        }
    });
    $("#subject").focus(function() {
        if( $("#subject").attr("value") == "Subject" ) {
            $("#subject").attr("value", "");
        }
    });
    $("#message").focus(function() {
        if( $("#message").attr("value") == "Message" ) {
            $("#message").attr("value", "");
        }
    });
    $("#form_contact").submit(function(){
        if( $("#name").attr("value") == "Name" || $("#name").attr("value") == "" ) {
            alert("Please, insert your name");
            return false;
        }
        if( $("#message").attr("value") == "Message" || $("#message").attr("value") == "" ) {
            alert("Please, insert your message");
            return false;
        }
        return true;
    });
});