本文實例講述了JS實現簡單易用的手機端浮動窗口顯示效果。分享給大家供大家參考，具體如下：
html：
<style type="text/css">.fdBonTel{ width:100%; height:53px; position:fixed; background:#0052ae; text-align:center; left:0; bottom:0; z-index:999; }.fdOnline{ background:url(index/images/online.png) no-repeat; width:255px; height:181px; position:fixed; left:50%; margin-left:-128px; top:40%; z-index:999; border-radius: 15px; box-shadow: 0 0 20px rgba(10, 2, 4, 0.75);}.fdOnline .fdOClose{ width:44px; height:44px; display:block; margin-top:-17px; margin-right:-6px;}.fdOnline .fdOTel{ background:#CF3; width:127px; height:58px; display:block; margin-top:123px;}.fdOnline .fdOOn{ background:#036; width:128px; height:58px; display:block; margin-top:96px;}</style><div> <img src="index/images/fdTel.gif" usemap="#Maps"> <map name="Maps" id="Maps"> <area shape="rect" coords="2,2,79,52" onClick="openZoosUrl();"> <area shape="rect" coords="77,2,166,52" href="tel:0855-8253310"> <area shape="rect" coords="166,4,242,51" onClick="openZoosUrl();"> <area shape="rect" coords="248,5,318,53" onClick="openZoosUrl();"> </map></div><div id="fdOnline"> <a href="###" onclick="closeOnline();"><img src="index/images/closeBtn.png"></a> <a href="###"></a> <a href="###"></a></div>js：
// JavaScript Documentdocument.writeln("<style type=/"text/css/">");document.writeln(".fdBonTel{ width:100%; height:53px; position:fixed; background:#0052ae; text-align:center; left:0; bottom:0; z-index:999; }");document.writeln(".fdOnline{ background:url(index/images/online.png) no-repeat; width:255px; height:181px; position:fixed; left:50%; margin-left:-128px; top:40%; z-index:999; border-radius: 15px; box-shadow: 0 0 20px rgba(10, 2, 4, 0.75);}");document.writeln(".fdOnline .fdOClose{ width:44px; height:44px; display:block; margin-top:-17px; margin-right:-6px;}");document.writeln(".fdOnline .fdOTel{ width:127px; height:58px; display:block; margin-top:123px;}");document.writeln(".fdOnline .fdOOn{ width:128px; height:58px; display:block; margin-top:96px;}");document.writeln("</style>");document.writeln("<div class=/"fdBonTel/">");document.writeln(" <img src=/"index/images/fdTel.gif/" usemap=/"#Maps/">");document.writeln(" <map name=/"Maps/" id=/"Maps/">");document.writeln(" <area shape=/"rect/" coords=/"2,2,79,52/" onClick=/"openZoosUrl();/">");document.writeln(" <area shape=/"rect/" coords=/"77,2,166,52/" href=/"tel:0855-8253310/">");document.writeln(" <area shape=/"rect/" coords=/"166,4,242,51/" onClick=/"openZoosUrl();/">");document.writeln(" <area shape=/"rect/" coords=/"248,5,318,53/" onClick=/"openZoosUrl();/">");document.writeln(" </map>");document.writeln("</div>");document.writeln("<div class=/"fdOnline/" id=/"fdOnline/">");document.writeln(" <a href=/"###/" class=/"fdOClose f_r/" onclick=/"closeOnline();/"><img src=/"index/images/closeBtn.png/" width=/"44/" height=/"44/"></a>");document.writeln(" <a href=/"###/" class=/"fdOTel f_l/"></a>");document.writeln(" <a href=/"###/" class=/"fdOOn f_r/"></a>");document.writeln("</div>");function showOnline() { if (document.getElementById("fdOnline")) { if (document.getElementById("fdOnline").style.display == "none") { document.getElementById("fdOnline").style.display = "block"; } }}function closeOnline() { document.getElementById("fdOnline").style.display = "none"; setInterval(chkSWT, 30000);};$(function(){ setInterval(showOnline, 30000);});效果圖：
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希望本文所述對大家JavaScript程序設計有所幫助。