[Web App ASP.NET-VB.NET] ขอถามเกี่ยวกับการใช้ javascrip ของ confirm msg ครับ

<script language="JavaScript">
	fucntion chkConfirm()
	{
		if(confirm('Do you want to ?')==true)
		{
			if(document.form1.xxx.value == 1)
			{
				return true;
			}
			else
			{
				return false;
			}
		}
		else
		{
			return false;
		}
	}
</script>

ButtonName.Attributes.Add("onclick", "javascript:return chkConfirm()")

ButtonName.Attributes.Add("onclick", "javascript:return chkConfirm()")