[code=html]
<script language="VBScript">
Sub BtnClick
MsgBox "VB OnClick"
End Sub
</script>
<script language="JScript">
function BtnClick() {
alert('JS OnClick')
}
</script>
<button onclick="VBScript:btnClick">VBScript</button>
<button onclick="JScript:btnClick()">JScript</button>
[/code]
Allerdings ist das Label javascript: total überflüssig.