<HTML>
<HEAD>
<TITLE>timeStamp Property</TITLE>
<SCRIPT LANGUAGE="JavaScript">
var stamp
function calcSpeed(evt) {
    if (stamp) {
        var gross = evt.timeStamp - stamp
        var wpm = Math.round(6000/gross)
        document.getElementById("wpm").firstChild.nodeValue = wpm + " sw/minut."
    }
    stamp = evt.timeStamp
    
}
</SCRIPT>
</HEAD>
<BODY>
<H1>Waciwo timeStamp</H1>
<HR>
<P>Zacznij wpisywa tekst w poniszym polu i obserwuj szybko wpisywania:</P>
<P>
<TEXTAREA COLS=60 ROWS=10 WRAP="hard" onKeyPress="calcSpeed(event)"></TEXTAREA>
</P>
<P>Szybko wpisywania: <SPAN ID="wpm">&nbsp;</SPAN></P>
</BODY>
</HTML>