求一简单的vbscript
<input type="checkbox" name="checkbox1" id="checkbox1"/>
求一vbscript，判断checkbox是不是被选中
[解决办法]

<input type="checkbox" name="checkbox1" id="checkbox1"/><input type="button" onclick="check()" 

value="Check"/>
<script language="vbscript">
sub check
  if checkbox1.checked then
     msgbox "checkbox1被勾选"
  else
     msgbox "checkbox1未被勾选"
  end if
end sub
</script>