<script>
function kloktimer()
{
nu=new Date();
sec=nu.getSeconds();
min=nu.getMinutes();
uur=nu.getHours();
if(sec < 10)
{
sec="0"+sec;
}
if(min < 10)
{
min="0"+min;
}
if(uur < 10)
{
sec="0"+uur;
}
tijd=uur+":"+min+":"+sec;
document.all.nu.value=tijd;
setTimeout("kloktimer()","1000");
}
kloktimer();
function starter(al)
{
if(al=="met")
{
alert("timer is gezet op: "+ document.all.nutijd.value);
}
if(document.all.nu.value==document.all.nutijd.value)
{
alert(document.all.msg.value);
}
setTimeout("starter('zonder')","500");
}
</script>
<body onload=kloktimer()>
<form>
<table>
<tr><td>Het is nu<td><input type=text name=nu></td></tr>
<tr><td>set alarm<td><input type=text name=nutijd value="uu:mm:ss"></td></tr>
<tr><td>messenge<td><input type=text name=msg value="Geef je messenge op"></td></tr>
<tr><td colspan=2><input type=button onclick="starter('met')" value="Set alert"></td></tr>
</table>
</form>