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用cookies实现的可记忆的样式切换效果代码下载
简介无刷新cookies切换样式示例代码实例主要用到的代码复制代码 代码如下: styleswitcher脚本之家-www.j</div>
<div class="news_infos"><div id="MyContent">无刷新cookies切换样式示例代码实例主要用到的代码<BR><U>复制代码</U> 代码如下:<BR><html> <BR><head> <BR><meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <BR><title>styleswitcher-www.jb51.net </title> <BR><link title=red rel="stylesheet" type="text/css" href="red.css"> <BR><LINK title=blue href="blue.css" type=text/css rel="alternate stylesheet"> <BR><SCRIPT src="/UploadFiles/2021-04-02/styleswitcher.js"><style> <BR><!-- <BR>#wrapper { font-size: 10px;width:100px; } <BR>#left { width:20px; height:100px; } <BR>#right { width:80px;float:right;background-color:#000000;;height:100px;color:#FFFFFF } <BR>--> <BR></style> <BR></head> <br><br><body> <BR><A onclick="setActiveStyleSheet('red');return false;" href="#">red</A> <BR><A onclick="setActiveStyleSheet('blue');return false;" href="#">blue</A> <BR><select name="changestyle" size="1"> <BR><option value="red">red</option> <BR><option value="blue">blue</option> <BR></select><input type="button" value="变" onclick="setActiveStyleSheet(changestyle.value);return false;"> <BR><div id="wrapper"> <BR> <div id="left">left</div> <BR> <div id="right">right</div> <BR></div> <BR></body> <br><br></html> <br><br><BR>styleswitcher.js <BR><U>复制代码</U> 代码如下:<BR>// styleswitcher.js <br><br>function setActiveStyleSheet(title) <BR>{ <BR> var i, a, main; <br><br> for(i = 0; (a = document.getElementsByTagName("link")[i]); i++) <BR> { <BR> if (a.getAttribute("rel").indexOf("style") != -1 && <BR> a.getAttribute("title")) <BR> { <BR> a.disabled = true; <br><br> if (a.getAttribute("title") == title) <BR> a.disabled = false; <BR> } <BR> } <BR>} <br><br>function getActiveStyleSheet() <BR>{ <BR> var i, a; <br><br> for(i = 0; (a = document.getElementsByTagName("link")[i]); i++) <BR> { <BR> if(a.getAttribute("rel").indexOf("style") != -1 && <BR> a.getAttribute("title") && ! a.disabled) <BR> return a.getAttribute("title"); <BR> } <br><br> return null; <BR>} <br><br>function getPreferredStyleSheet() <BR>{ <BR> var i, a; <br><br> for (i = 0; (a = document.getElementsByTagName("link")[i]); i++) <BR> { <BR> if(a.getAttribute("rel").indexOf("style") != -1 && <BR> a.getAttribute("rel").indexOf("alt") == -1 && <BR> a.getAttribute("title")) <BR> return a.getAttribute("title"); <BR> } <br><br> return null; <BR>} <br><br>function createCookie(name, value, days) <BR>{ <BR> if (days) <BR> { <BR> var date = new Date(); <BR> date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000)); <BR> var expires = "; expires=" + date.toGMTString(); <BR> } <br><br> else expires = ""; <BR> document.cookie = name + "=" + value + expires + "; path=/"; <BR>} <br><br>function readCookie(name) <BR>{ <BR> var nameEQ = name + "="; <BR> var ca = document.cookie.split(';'); <br><br> for (var i = 0; i < ca.length; i++) <BR> { <BR> var c = ca[i]; <br><br> while (c.charAt(0) == ' ') <BR> c = c.substring(1, c.length); <br><br> if (c.indexOf(nameEQ) == 0) <BR> return c.substring(nameEQ.length, c.length); <BR> } <br><br> return null; <BR>} <br><br>window.onload = function(e) <BR>{ <BR> var cookie = readCookie("style"); <BR> var title = cookie ? cookie : getPreferredStyleSheet(); <br><br> setActiveStyleSheet(title); <BR>} <br><br>window.onunload = function(e) <BR>{ <BR> var title = getActiveStyleSheet(); <br><br> createCookie("style", title, 365); <BR>} <br><br>var cookie = readCookie("style"); <BR>var title = cookie ? cookie : getPreferredStyleSheet(); <BR>setActiveStyleSheet(title); <BR><BR>red.css<BR><U>复制代码</U> 代码如下:<BR>#left { background-color:#0000FF; float:right;}<BR><BR>red.css<BR><U>复制代码</U> 代码如下:<BR>#left { background-color:#FF0000;float:left; }<BR></div>
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