javascript print() 实现直接打印
<object id="WebBrowser" width=0 height=0 classid="CLSID:8856F961-340A-11D0-A96B-00C04FD705A2">
</object>
<p align="center">
<input type=button value=打印>
<input type=button value=直接打印>
<input type=button value=页面设置>
<input type=button value=打印预览>
</p>