简单3步：实现网站CSS样式快速切换
一. 在网页的HEAD区域加入下列代码：
二. styleswitcher.js文件：
function setActiveStyleSheet(title) { var i, a, main; for(i=0; (a = document.getElementsByTagName("link")[i]); i++) { if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) { a.disabled = true; if(a.getAttribute("title") == title) a.disabled = false; } }}function getActiveStyleSheet() { var i, a; for(i=0; (a = document.getElementsByTagName("link")[i]); i++) { if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title"); } return null;}function getPreferredStyleSheet() { var i, a; for(i=0; (a = document.getElementsByTagName("link")[i]); i++) { if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("rel").indexOf("alt") == -1 && a.getAttribute("title") ) return a.getAttribute("title"); } return null;}function createCookie(name,value,days) { if (days) { var date = new Date(); date.setTime(date.getTime()+(days*24*60*60*1000)); var expires = "; expires="+date.toGMTString(); } else expires = ""; document.cookie = name+"="+value+expires+"; path=/";}function readCookie(name) { var nameEQ = name + "="; var ca = document.cookie.split(';'); for(var i=0;i < ca.length;i++) { var c = ca[i]; while (c.charAt(0)==' ') c = c.substring(1,c.length); if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length); } return null;}window.onload = function(e) { var cookie = readCookie("style"); var title = cookie ? cookie : getPreferredStyleSheet(); setActiveStyleSheet(title);}window.onunload = function(e) { var title = getActiveStyleSheet(); createCookie("style", title, 365);}var cookie = readCookie("style");var title = cookie ? cookie : getPreferredStyleSheet();setActiveStyleSheet(title);或者[url=http://www.alistapart.com/d/alternate/styleswitcher.js]点此下载styleswitcher.js[/url]
三. 在网页的BODY相关位置加入下列代码：
切换到风格1切换到风格2
一旦用户点击网页CSS样式切换按钮，他的计算机上保存了一个 cookie, 他在下一次访问您的 web 站点时会保留它所选择的网页样式。同样，如果他从备用样式切换至默认样式，cookie同样 将保存与加载的默认样式表。
[size=10]来源: http://www.inetsolution.com/turnleft/post/CSS-Style-Switcher-A-quick-and-dirty-how-to.aspx[/size]
