本文實例講述了JS實現常見的TAB、彈出層效果。分享給大家供大家參考。具體如下：
這里演示tab活頁夾（網頁標簽），斑馬線，遮罩層、彈出層的簡單實現，里面的JS文件，可下拉保存為JS代碼調用即可，也可以拷貝在本網頁中使用。這個小網頁囊括了目前網上流行的風頁標簽、彈出層以及斑馬線效果，很實用啦。
運行效果截圖如下：
在線演示地址如下：
http://demo.VeVB.COm/js/2015/js-tab-alert-bq-style-demo/
具體代碼如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>tab活頁夾，斑馬線，遮罩層）的簡單實現</title><style type="text/css">* {margin:0;padding:0;list-style:none;font-size:12px;line-height:20px;font-family:Arial;}h1,h2,h3 { font-size:14px; margin:10px 0;}hr { margin:10px 0; height:1px;clear:both;border:0; background:#c00;}a:link,a:visited{color:#164A84;text-decoration:none;}a:hover,a:active{color:#c00;text-decoration:underline;}table { border-collapse:collapse;border:1px solid #ccc;border-width:1px 1px 0 0; margin-left:20px;}td,th { padding:5px;border:1px solid #ccc;border-width:0 0 1px 1px;}</style><script type="text/javascript">function BtHide(id){var Div = document.getElementById(id);if(Div){Div.style.display="none"}}function BtShow(id){var Div = document.getElementById(id);if(Div){Div.style.display="block"}}function BtTabRemove(index,head,divs) { var tab_heads = document.getElementById(head); if (tab_heads) { var lis = tab_heads.getElementsByTagName("li"); var as = tab_heads.getElementsByTagName("a"); for(var i=0;i<as.length;i++){lis[i].className = "";BtHide(divs+"_"+i);if (i==index) {lis[i].className = "current";}} BtShow(divs+"_"+index)}}function BtTabOn(head,divs){ var tab_heads=document.getElementById(head); if (tab_heads) { BtTabRemove(0,head,divs); var alis=tab_heads.getElementsByTagName("a"); for(var i=0;i<alis.length;i++) { alis[i].num=i; alis[i].onclick = function(){BtTabRemove(this.num,head,divs);this.blur();return false;} alis[i].onfocus = function(){BtTabRemove(this.num,head,divs)}}}}function BtZebraStrips(id,tag) { var ListId = document.getElementById(id); if(ListId){ var tags = ListId.getElementsByTagName(tag); for(var i=0;i<tags.length;i++) { tags[i].className += " barry"+i%2; tags[i].onmouseover = function(){this.className += " hover"} tags[i].onmouseout = function(){this.className = this.className.replace(" hover","")}}}}function BtPopload(showId){//蒙版生成div+iframe var h = Math.max(document.documentElement.scrollHeight,document.documentElement.clientHeight) + 'px'; var w = document.documentElement.scrollWidth + 'px'; var popCss = "background:#000;opacity:0.3;filter:alpha(opacity=30);position:absolute;left:0;top:0;overflow:hidden;" var exsit = document.getElementById("popBox"); if (!exsit) { pop_Box = document.createElement("div");pop_Box.id = "popBox"; document.getElementsByTagName("body")[0].appendChild(pop_Box); pop_Box.style.cssText = popCss;pop_Box.style.zIndex = "10"; pop_Box.style.height = h;pop_Box.style.width = w; pop_Iframe = document.createElement("iframe");pop_Iframe.id = "popIframe"; document.getElementsByTagName("body")[0].appendChild(pop_Iframe); pop_Iframe.style.cssText = popCss;pop_Iframe.style.zIndex = "9"; pop_Iframe.style.height = h;pop_Iframe.style.width = (parseInt(w)-5)+"px"; } BtShow("popIframe");BtShow("popBox");BtShow(showId); pop_Win = document.getElementById(showId); pop_Win.style.position = "absolute"; pop_Win.style.zIndex = "11"; pop_Win.style.top = document.documentElement.scrollTop+document.documentElement.clientHeight/2-pop_Win.offsetHeight/2+ 'px'; pop_Win.style.left = (document.documentElement.clientWidth/2-pop_Win.offsetWidth/2) + 'px';}function BtPopShow(Bid,Did) { var UploadBtn = document.getElementById(Bid); if (UploadBtn){UploadBtn.onclick = function() {BtPopload(Did);return false;}} }function BtPopHide(Bid,Did) { var UploadBtn = document.getElementById(Bid); if (UploadBtn){UploadBtn.onclick = function() {BtHide(Did);BtHide("popBox");BtHide("popIframe");return false;}} }</script></head><body style="padding:0 40px;"><style type="text/css">.tabs {position:relative;width:300px;height:260px;border:1px solid #ccc;margin:0 20px;}.tabs ul {width:200px;height:21px;overflow:hidden;position:absolute;top:0;left:0;}.tabs ul li {float:left;width:60px;border-right:1px solid #ccc;border-bottom:1px solid #ccc;text-align:center;background:#f5f5f5;}.tabs ul li.current { border-bottom:0; background:#fff;}.tabs ul li a {color:#4a4a4a;display:block;width:100%;font-size:14px;text-decoration:none;}.tabs ul li a:visited { color:#4a4a4a;}.tabs .tablist {height:260px;overflow:hidden;}.tabs .s {width:300px;height:460px;overflow:hidden;text-align:center;font-size:40px;color:#4a4a4a;line-height:160px; background:#fff;}.tabs a.more { background:#fff;color:#4a4a4a;line-height:20px;float:right;padding:0 5px; font-family:Verdana;}</style><h2>1:tab</h2><div class="tabs"> <ul id="head"> <li><a href="#s_0">S1</a></li> <li><a href="#s_1">S2</a></li> <li><a href="#s_2">S3</a></li> </ul> <div class="tablist"> <div class="s" id="s_0"> <a href="#" class="more">More s1</a> s1 content </div> <div class="s" id="s_1"> <a href="#" class="more">More s2</a> s2 content </div> <div class="s" id="s_2"> <a href="#" class="more">More s3</a> s3 content </div> </div></div><script type="text/javascript">BtTabOn("head","s")</script><hr /><style type="text/css">.barry1 {background:#f5f5f5;}.barry0 {background:#fff;}.hover {background:#ddd;}</style><h2>2:斑馬線</h2><div class="hot_car" id="hot_car"><table cellpadding="0" cellspacing="0"> <thead><tr><td>廠商指導價</td><td>經銷商報價</td><td>促銷信息</td><td>報價時間</td></tr></thead> <tr><td>19.08萬</td><td>19.18萬</td> <td>慶賀奇瑞北京突破10萬輛全系大酬賓</td><td>2008-12-15</td></tr> <tr><td>19.08萬</td><td>19.18萬</td> <td>慶賀奇瑞北京突破10萬輛全系大酬賓</td><td>2008-12-15</td></tr> <tr><td>19.08萬</td><td>19.18萬</td> <td>慶賀奇瑞北京突破10萬輛全系大酬賓</td><td>2008-12-15</td></tr> <tr><td>19.08萬</td><td>19.18萬</td> <td>慶賀奇瑞北京突破10萬輛全系大酬賓</td><td>2008-12-15</td></tr> <tr><td>19.08萬</td><td>19.18萬</td> <td>慶賀奇瑞北京突破10萬輛全系大酬賓</td><td>2008-12-15</td></tr> <tr><td>19.08萬</td><td>19.18萬</td> <td>慶賀奇瑞北京突破10萬輛全系大酬賓</td><td>2008-12-15</td></tr> <tr><td>19.08萬</td><td>19.18萬</td> <td>慶賀奇瑞北京突破10萬輛全系大酬賓</td><td>2008-12-15</td></tr></table></div><style type="text/css">.ul { margin:20px 0 0 20px;width:300px;border:1px solid #ccc;border-bottom:0;}.ul li { height:20px; padding:3px 5px;border-bottom:1px solid #ccc;}</style><ul id="ul" class="ul"> <li><span>[<a href="#">企業</a>]</span> <a href="#">每條最多19個字 </a></li> <li><span>[<a href="#">代碼</a>]</span> <a href="#">第一屆世界智力運動成式成</a></li> <li><span>[<a href="#">企業</a>]</span> <a href="#">上海通用汽車鼎持全球俱樂部山 </a></li> <li><span>[<a href="#">特效</a>]</span> <a href="#">推動和諧發展 打造綠色企業</a></li> <li><span>[<a href="#">企業</a>]</span> <a href="#">發現商業智慧 見證進步思想</a></li> <li><span>[<a href="#">編程</a>]</span> <a href="#">成就汽車維修“金藍領”夢想</a></li> <li><span>[<a href="#">源碼</a>]</span> <a href="#">發現商業智慧 見證進步思想</a></li> <li><span>[<a href="#">風格</a>]</span> <a href="#">成就汽車維修“金藍領”夢想</a></li> <li><span>[<a href="#">程序</a>]</span> <a href="#">發現商業智慧 見證進步思想</a></li> <li><span>[<a href="#">行業</a>]</span> <a href="#">成就汽車維修“金藍領”夢想</a></li></ul><script type="text/javascript">BtZebraStrips("hot_car","tr");BtZebraStrips("ul","li")</script><hr /><style type="text/css">.pop { border:3px solid skyblue;width:400px; background:#fff; padding:5px; display:none;}</style><h2>3:遮罩層</h2><a href="#" id="open" style="margin-left:20px">點擊彈出</a><div class="pop" id="pop"><a href="#" id="close">點擊關閉</a></div><script type="text/javascript">BtPopShow("open","pop");BtPopHide("close","pop")</script><hr /></body></html>希望本文所述對大家的JavaScript程序設計有所幫助。
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