javascript实现页码打印去除页眉和页脚

来源：互联网发布：女人说话知乎编辑：程序博客网时间：2024/04/28 22:39

js实现页面打印功能实例代码(附去页眉页脚功能代码)
复制代码代码如下:
<html>
<head></head>
<style type="text/css" media="screen">
@media print{
.print {display:block;}
.notPrint {display:none;}
}
</style>
<script language="javascript">
function preview()
{
bdhtml=window.document.body.innerHTML;
sprnstr="";
eprnstr="";
prnhtml=bdhtml.substr(bdhtml.indexOf(sprnstr)+17);
prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr));
window.document.body.innerHTML=prnhtml;
window.print();
}
</script>
<body>
<form id="WebForm1" method="post" >
<center>本部分以上不被打印</center>

<div align="center">
<asp:DataGrid id="dgShow" runat="server">

</asp:DataGrid>
<table>
<tr><td>打印打印打印打印打印打印打印打印</td></tr>
</table>
</div>

<center>本部分以下不被打印</center>
<div align="center">
<input type="button" name="print" value="预览并打印" onclick="preview()">
</div>
<style> @media Print { .Noprn { DISPLAY: none }}
</style>
<p class="Noprn">不打印</p>
<table id="datagrid">
<tr>
<td>打印</td>
</tr>
</table>
<input class="Noprn" type="button" onclick="window.print()" value="print">
</form>
</body>
</html>

-------------
使用JS打印，
看代码
复制代码代码如下:
<script language="javascript">
function preview()
{
bdhtml=window.document.body.innerHTML;
sprnstr="";
eprnstr="";
prnhtml=bdhtml.substr(bdhtml.indexOf(sprnstr)+17);
prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr));
window.document.body.innerHTML=prnhtml;
window.print();
}
</script>

这段代码，他是打印
和
这个标记之间的网页内容。
所以网页中要包含这个2个标签才行···
下面是去除页脚页眉的js代码
复制代码代码如下:
<script>
var HKEY_Root,HKEY_Path,HKEY_Key;
HKEY_Root="HKEY_CURRENT_USER";
HKEY_Path="//Software//Microsoft//Internet Explorer//PageSetup//";
//设置网页打印的页眉页脚为空
function PageSetup_Null()
{
try
{
var Wsh=new ActiveXObject("WScript.Shell");
HKEY_Key="header";
Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"");
HKEY_Key="footer";
Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"");
}
catch(e)
{}
}
//设置网页打印的页眉页脚为默认值
function PageSetup_Default()
{
try
{
var Wsh=new ActiveXObject("WScript.Shell");
HKEY_Key="header";
Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&w&b页码,&p/&P");
HKEY_Key="footer";
Wsh.RegWrite(HKEY_Root+HKEY_Path+HKEY_Key,"&u&b&d");
}
catch(e)
{}
}
PageSetup_Default();
</script>

注意有可能执行时，会出现没有效果的错误，这时原因是可能你的浏览器限制了active对象的创建，只要取消限制就好了，取消方法如下：
打开你的ie浏览器internet选项—— 安全—— 自定义级别—— 把对没有标记为安全的activex控件进行初始化和脚本运行设置为启用

付去页面页脚代码 content.js :
<!--
window.onerror=function(){return true;}
function MM_reloadPage(init) {
if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) {
    document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
function MM_preloadImages() {
var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}
MM_reloadPage(true);
/*
if (self!=top){
top.location.href=location.href;
}
*/
function document_write(s) { document.write(s); }
function $(objectId) {
     if(document.getElementById && document.getElementById(objectId)) {
       return document.getElementById(objectId);
     }
     else if (document.all && document.all(objectId)) {
      return document.all(objectId);
     }
     else if (document.layers && document.layers[objectId]) {
       return document.layers[objectId];
     }
     else {
       return false;
    }
}
function check_search(){
if(document.getElementById('sbi').value == ""){
alert('很抱歉,请您先输入您要搜索的内容!');
document.getElementById('sbi').focus();
return false;
}
if(document.getElementById('sbi').value == "请输入关键字"){
alert('很抱歉,请您先输入您要搜索的内容!');
return false;
document.getElementById('sbi').focus();
}
if(document.getElementById('sbi').value.length < 2){
alert('很抱歉,搜索的内容不能少于2个字!');
return false;
}
}
function doClick_down(o){
o.className="current";
var j;
var id;
var e;
for(var i=1;i<=4;i++){
    id ="tool"+i;
    j = document.getElementById(id);
    e = document.getElementById("d_con"+i);
    if(id != o.id){
      j.className="";
      e.style.display = "none";
    }else{
e.style.display = "block";
    }
}
}
function controlImg(ele,w,h){
var c=ele.getElementsByTagName("img");
for(var i=0;i<c.length;i++){
    var w0=c[i].clientWidth,h0=c[i].clientHeight;
    var t1=w0/w,t2=h0/h;
    if(t1>1||t2>1){
     c[i].width=Math.floor(w0/(t1>t2?t1:t2));
     c[i].height=Math.floor(h0/(t1>t2?t1:t2));
if(document.all){
          c[i].outerHTML='<a href="'+c[i].src+'" target="_blank" title="在新窗口打开图片">'+c[i].outerHTML+'</a>'
      }
       else{
          c[i].title="在新窗口打开图片";
          c[i].onclick=function(e){window.open(this.src)}
           }
           }
    }
}
//让Mozilla支持innerText
try{
HTMLElement.prototype.__defineGetter__
(
"innerText",
function ()
{
var anyString = "";

var childS = this.childNodes;
   for(var i=0; i<childS.length; i++)
   {
    if(childS[i].nodeType==1)
    anyString += childS[i].tagName=="BR" ? '/n' : childS[i].innerText;
    else if(childS[i].nodeType==3)
    anyString += childS[i].nodeValue;
   }
   return anyString;
}
);
}
catch(e){}

//更改字体大小
var status0='';
var curfontsize=10;
var curlineheight=18;
function turnsmall(){
if(curfontsize>10){
    document.getElementById('art_content').style.fontSize=(--curfontsize)+'pt';
document.getElementById('art_content').style.lineHeight=(--curlineheight)+'pt';
}
}
function turnbig(){
if(curfontsize<28){
    document.getElementById('art_content').style.fontSize=(++curfontsize)+'pt';
document.getElementById('art_content').style.lineHeight=(++curlineheight)+'pt';
}
}
function runCode() //定义一个运行代码的函数，
{
if(1 == arguments.length)
try{event = arguments[0];}catch(e){}
var code=(event.target || event.srcElement).parentNode.childNodes[0].value;//即要运行的代码。
var newwin=window.open('','',''); //打开一个窗口并赋给变量newwin。
newwin.opener = null // 防止代码对论谈页面修改
newwin.document.write(code); //向这个打开的窗口中写入代码code，这样就实现了运行代码功能。
newwin.document.close();
}
//运行代码
function runEx(cod1) {
cod=document.getElementById(cod1)
   var code=cod.value;
   if (code!=""){
    var newwin=window.open('','','');
    newwin.opener = null
    newwin.document.write(code);
    newwin.document.close();
}
}
//复制代码
function doCopy2(ID) {
if (document.all){
   textRange = document.getElementById(ID).createTextRange();
   textRange.execCommand("Copy");
alert('复制成功');
}
else{
   alert("此功能只能在IE上有效");
}
}
function isIE(){
if (window.navigator.userAgent.indexOf("MSIE")>=1)
return true;
else
return false;
}

//复制代码
function doCopy(id){
var testCode=document.getElementById(id).innerText;
if(copy2Clipboard(testCode)!=false){
if (document.all){
var rng = document.body.createTextRange();
rng.moveToElementText(document.getElementById(id));
rng.scrollIntoView();
rng.select();
rng.collapse(false);
}
alert("代码已经复制到粘贴板! ");
}else{
alert("请选中文本，使用 Ctrl+C 复制!");
}
}
copy2Clipboard=function(txt){
if(window.clipboardData){
window.clipboardData.clearData();
window.clipboardData.setData("Text",txt);
}
else if(navigator.userAgent.indexOf("Opera")!=-1){
window.location=txt;
}
else if(window.netscape){
try{
   netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
}
catch(e){
   alert("您的firefox安全限制限制您进行剪贴板操作，请打开’about:config’将signed.applets.codebase_principal_support’设置为true’之后重试，相对路径为firefox根目录/greprefs/all.js");
   return false;
}
var clip=Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
if(!clip)return;
var trans=Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
if(!trans)return;
trans.addDataFlavor('text/unicode');
var str=new Object();
var len=new Object();
var str=Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
var copytext=txt;str.data=copytext;
trans.setTransferData("text/unicode",str,copytext.length*2);
var clipid=Components.interfaces.nsIClipboard;
if(!clip)return false;
clip.setData(trans,null,clipid.kGlobalClipboard);
}
}
function getClipboard(){if(window.clipboardData){return(window.clipboardData.getData('text'));}else
{if(window.netscape){try
{netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");var clip=Components.classes["@mozilla.org/widget/clipboard;1"].createInstance(Components.interfaces.nsIClipboard);if(!clip){return;}var trans=Components.classes["@mozilla.org/widget/transferable;1"].createInstance(Components.interfaces.nsITransferable);if(!trans){return;}trans.addDataFlavor("text/unicode");clip.getData(trans,clip.kGlobalClipboard);var str=new Object();var len=new Object();trans.getTransferData("text/unicode",str,len);}catch(e){alert("您的firefox安全限制限制您进行剪贴板操作，请打开'about:config'将signed.applets.codebase_principal_support'设置为true'之后重试，相对路径为firefox根目录/greprefs/all.js");return null;}if(str){if(Components.interfaces.nsISupportsWString){str=str.value.QueryInterface(Components.interfaces.nsISupportsWString);}else
{if(Components.interfaces.nsISupportsString){str=str.value.QueryInterface(Components.interfaces.nsISupportsString);}else
{str=null;}}}if(str){return(str.data.substring(0,len.value/2));}}}return null;}
//另存代码
function doSave(obj) {
if (document.all){
var winname = window.open('', '_blank', 'top=10000');
winname.document.open('text/html', 'replace');
winname.document.writeln(obj.value);
winname.document.execCommand('saveas','','code.htm');
winname.close();}
else{
alert("此功能只能在IE上有效");
}
}
//复制文本
function copyIdText(id)
{
copy( $(id).innerText,$(id) );
}
function copyIdHtml(id)
{
copy( $(id).innerHTML,$(id) );
}

function setCookie(name, value) //cookies设置JS
{
var argv = setCookie.arguments;
var argc = setCookie.arguments.length;
var expires = (argc > 2) ? argv[2] : null;
if(expires!=null)
{
var LargeExpDate = new Date ();
LargeExpDate.setTime(LargeExpDate.getTime() + (expires*1000*3600*24));
}
document.cookie = name + "=" + escape (value)+((expires == null) ? "" : ("; expires=" +LargeExpDate.toGMTString()));
}