<!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>弹出菜单案例</title> <style> #cont { width:100px; height:30px; border:solid 1px #ccc; float:left;} #footer { width:200px; height:100px; position:absolute; left:0px; top:50px; background-color:#f4f4f4; border:solid 1px #ccc; left:10px;} #footer.disable { display:none;} #cont2 { width:100px; height:30px; border:solid 1px #ccc; float:left; margin-left:10px;} #footer2 { width:200px; height:100px; position:absolute; left:120px; top:50px; background-color:#f4f4f4; border:solid 1px #ccc;} #footer.disable , #footer2.disable{ display:none;} </style> </head> <body> <div id="cont">内容</div> <div id="footer" class="disable">此处显示 class "footer" 的内容</div> <div id="cont2">测试</div> <div id="footer2" class="disable">此处显示 class "footer" 的内容</div> <script> var cont = document.getElementById("cont"); var foooter = document.getElementById("footer"); var cont2 = document.getElementById("cont2"); var foooter2 = document.getElementById("footer2"); var obj = new tanchu(cont,foooter); var obj2 = new tanchu(cont2,foooter2); function tanchu (yuan,mubiao){ var tiem ; var _this = this ; yuan.addEventListener("mouseover",function (){_this.show()}); yuan.addEventListener("mouseout",function (){_this.hide()}); mubiao.addEventListener("mouseover",function (){_this.show()}); mubiao.addEventListener("mouseout",function (){_this.hide()}); this.show = function (){ clearTimeout(tiem); mubiao.className = ""; } this.hide = function (){ tiem = setTimeout(function (){mubiao.className = "disable";},200); } } </script> </body> </html>