打印JQuery

         function doPrint() {
            bdhtml = window.document.body.innerHTML;
            sprnstr = "<!--startprint-->";
            eprnstr = "<!--endprint-->";
            prnhtml = bdhtml.substr(bdhtml.indexOf(sprnstr) + 17);
            prnhtml = prnhtml.substring(0, prnhtml.indexOf(eprnstr));
            window.document.body.innerHTML = prnhtml;
            window.print();
        }; 

原文：http://www.cnblogs.com/zzhua/p/5054172.html