页面打印

1 function doPrint() {
2             bdhtml = window.document.body.innerHTML;
3             sprnstr = "<!--startprint-->";
4             eprnstr = "<!--endprint-->";
5             prnhtml = bdhtml.substr(bdhtml.indexOf(sprnstr) + 17);
6             prnhtml = prnhtml.substring(0, prnhtml.indexOf(eprnstr));
7             window.document.body.innerHTML = prnhtml;
8             window.print();
9         }