Javascript打印代码

Javascript打印代码 实现打印功能的javascript代码
  function CallPrint(strid)
{
var prtContent = document.getElementById(strid);
var WinPrint = window.open('','','letf=0,top=0,width=1,height=1,toolbar=0,scrollbars=0,status=0,menubar=0');
WinPrint.document.write(prtContent.innerHTML);
WinPrint.document.close();
WinPrint.focus();
WinPrint.print();
WinPrint.close();
//prtContent.innerHTML=strOldOne;
}

页面代码 <input id="btnPrint" type="button" value="打印" onclick="javascript:CallPrint('divPrint');" />
指定打印区域 <div id="divPrint"> 要打印的区域</div>