浅谈网页中自定义打开链接的方式
由于在XHTML1.0过渡型标准之前，target="_blank"属性一直是点击链接后弹出新窗口的方法，但是XHTML1.0严格型标准以及XHTML1.1之后就不再支持target属性，
也就是说不能再用target="_blank"来弹出一个新的窗口!本实例探讨的是在XHTML1.1标准下弹出新窗口的方法，并结合Cookies实现客户端自定义弹出新窗口的方法。
以下是引用片段：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>自定义打开链接的方式</title>
<style type="text/css">
<!--
#main {
width: 600px;
margin-right: auto;
margin-left: auto;
border: 1px solid #006699;
height: 600px;
}
#title {
background-color: #006699;
padding: 10px;
width: 100%;
font-family: Verdana, Arial;
font-size: 16px;
color: #FFFFFF;
font-weight: bold;
}
#property {
margin: 10px;
border: 1px solid #99CC00;
height: 24px;
background-color: #F8FEE9;
font-size: 12px;
line-height: 24px;
}
#link {
margin: 10px;
border: 1px solid #0099CC;
background-color: #EFEEFF;
font-size: 12px;
height: 366px;
padding: 20px;
}
#copyright {
font-size: 12px;
padding: 20px;
color: #003333;
line-height: 16px;
}
img{
border-top-style: none;
border-right-style: none;
border-bottom-style: none;
border-left-style: none;
}
.center {
text-align: center;
}
-->
</style>
<script type="text/javascript">
<!--
function onlinks(){
if(getCookie("links")=="_blank"){
document.getElementById("c1").checked=true;
document.getElementById("c2").checked=true;
newlinks();//dolinks();
}
else{
document.getElementById("c1").checked=false;
document.getElementById("c2").checked=false;
newlinks();//dolinks();
}
}
function dolinks(){
document.getElementById("c2").checked?setCookie('links','_blank',1):deleteCookie('links');
}
function newlinks() {
document.getElementById("c1").checked?fc1():fc2()
function fc1(){
linktarget="_blank";document.getElementById("cookies_p").style.display="block"}
function fc2(){
linktarget="";document.getElementById("cookies_p").style.display="none"}
var anchors = document.getElementsByTagName("a");
for (var i=0; i<anchors.length; i++) {
var anchor = anchors[i];
if (anchor.getAttribute("href"))
anchor.target = linktarget;
}
}
function getCookie(name) {
var start = document.cookie.indexOf( name + "=" );
var len = start + name.length + 1;
if ( ( !start ) && ( name != document.cookie.substring( 0, name.length ) ) ) {
return null;
}
if ( start == -1 ) return null;
var end = document.cookie.indexOf( ";", len );
if ( end == -1 ) end = document.cookie.length;
return unescape( document.cookie.substring( len, end ) );
}
function setCookie( name, value, expires, path, domain, secure ) {
var today = new Date();
today.setTime( today.getTime() );
if ( expires ) {
expires = expires * 1000 * 60 * 60 * 24;
}
var expires_date = new Date( today.getTime() + (expires) );
document.cookie = name+"="+escape( value ) +
( ( expires ) ? ";expires="+expires_date.toGMTString() : "" ) + //expires.toGMTString()
( ( path ) ? ";path=" + path : "" ) +
( ( domain ) ? ";domain=" + domain : "" ) +
( ( secure ) ? ";secure" : "" );
}
function deleteCookie( name, path, domain ) {
if ( getCookie( name ) ) document.cookie = name + "=" +
( ( path ) ? ";path=" + path : "") +
( ( domain ) ? ";domain=" + domain : "" ) +
";expires=Thu, 01-Jan-1970 00:00:01 GMT";
}
-->
</script>
<script src="http://www.aaa.com/... /javascript">
</script>
<script type="text/javascript">
_uacct = "UA-97125-1";
urchinTracker();
</script>
</head>
<body onload="onlinks();">
<div id="main">
<div id="title">自定义打开链接的方式</div>
<div id="property">
<label>
<input type="checkbox" id="c1" value="checkbox" onclick="newlinks();" />
打开链接为新窗口</label>
<span id="cookies_p" style="display:none">
<label>
<input type="checkbox" id="c2" value="checkbox" onclick="dolinks();" />
记住我的选择</label></span>
</div>
<div id="link">
<p><a href="http://www.dushuwu.net"> 11</a></p>
<p><a href="http://www.dushuwu.net"> 11</a></p>
<p><a href="http://www.dushuwu.net"> 11</a></p>
<p><a href="http://www.dushuwu.net"> 11</a></p>
</div>
<div id="copyright">
内容</div>
<p class="center">
<a href="http://validator.w3.org/check?uri=referer"><imgsrc="http://www.w3.org/Icons/valid-xhtml11&quo ... 31"width="88"/></a></p></div>
</body>
</html>
