Examples of the three types of code

XHTML (*.ht_) CSS (hp6.cs_) JavaScript (*.js_)
<div class="Feedback" id="FeedbackDiv">

<div class="FeedbackText" id="FeedbackContent"> </div>

<button id="FeedbackOKButton" class="FuncButton" [...] onclick="HideFeedback(); return false;">
OK
</button>

</div>
div.Feedback {
    left: 33%;
    width: 34%;
    border-style: solid;
    border-width: 1px;
    position: absolute;
    display: none;
    font-size: small;
[...]
}
function HideFeedback(){
    document.getElementById ('FeedbackDiv').style.display = 'none';
[...]
    if (Finished == true){
        Finish();
    }
}