<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
<script type="text/javascript"> </script>
<script type="text/vbscript">
Sub SelectItem2()
MsgBox "test vbscript.", vbInformation, "OK"
End Sub
</script>
<script type="text/javascript">
function SelectItem() {
alert("test javascript")
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" Text="Button" OnClientClick="return SelectItem2()" />
<asp:Button ID="Button2" runat="server" Text="Button22" OnClientClick="SelectItem()" />
</div>
</form>
</body>
</html>