下载这个:http://www.meadroid.com/scriptx/ScriptX.cab
<object id="factory" style="display:none" viewastext classid="clsid:1663ed61-23eb-11d2-b92f-008048fdd814" codebase="http://www.meadroid.com/scriptx/ScriptX.cab#Version=5,60,0,360"></object>
<script defer>
function window.onload() {
  factory.printing.header = "页眉"
  factory.printing.footer = "自定义页脚"
  factory.printing.leftMargin = 0.75
  factory.printing.topMargin = 1.5
  factory.printing.rightMargin = 0.75
  factory.printing.bottomMargin = 1.5
  }
</script>