本文實例講述了JavaScript實現多個重疊層點擊切換效果的方法。分享給大家供大家參考。具體如下：
<!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>三個層重疊，點擊可切換</title><script type="text/javascript">function $(obj){return document.getElementById(obj);}function change(n){for (var i=1;i<4;i++){if(n==i){$("a"+i).style.zIndex="100";}else{$("a"+i).style.zIndex="0";}}}</script></head><body><div id="a1" style="position:absolute;left:100px;top:100px;width:100px;height:100px;background-color:#ddeeff;z-index:1" onclick="change('1')" ></div><div id="a2" style="position:absolute;left:150px;top:130px;width:100px;height:100px;background-color:#eeffdd;z-index:2" onclick="change('2')"></div><div id="a3" style="position:absolute;left:200px;top:160px;width:100px;height:100px;background-color:#ffddee;z-index:3" onclick="change('3')"></div><div>//www.49028c.com/</div></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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