js网页打印

js网页打印操作

<!--startprint1-->
<!--endprint1-->
/*打印操作*/
function print(oper) {
  if (oper < 10) {
	bdhtml = window.document.body.innerHTML;//获取当前页的html代码
	sprnstr = "<!--startprint" + oper + "-->";//设置打印开始区域
	eprnstr = "<!--endprint" + oper + "-->";//设置打印结束区域
	prnhtml = bdhtml.substring(bdhtml.indexOf(sprnstr) + 18); //从开始代码向后取html
	prnhtml = prnhtml.substring(0, prnhtml.indexOf(eprnstr));//从结束代码向前取html
	window.document.body.innerHTML = prnhtml;
	window.print();
	window.document.body.innerHTML = bdhtml;
  } else {
	window.print();
  }
  window.location.reload();
}