如下所示：
}).show();
}).mouseout(function () {
$(".mapDiv").remove();
}).mousemove(function (e) {
$(".mapDiv").css({
left: (x + $x) + "px",
top: (y + $y) + "px"
})
});
});
//first load
show();
//random
setInterval(show, 3000); // 注意函数名没有引号和括弧
});
function show() {
var area = $("area");
var random = getRandom(area.length);
$(area[random]).trigger("mouseover");
}
function getRandom(n) { return Math.floor(Math.random() * n + 1) }
</script>
</head>
<body>
<div class="map">
<img border="0" usemap="#Map" src="images/1544302yufceen0c3nbjzu.png" />
<map name="Map" id="Map">
<area id="beijing" alt="北京" href="forum.php?gid=1" coords="354,140,380,153" shape="rect">
<area id="shanghai" alt="上海" href="forum.php?gid=3" coords="434,246,462,259" shape="rect">
<area id="tianjin" alt="天津" href="forum.php?gid=2" coords="382,168,408,180" shape="rect">
<area id="chongqing" alt="重庆" href="forum.php?gid=4" coords="294,264,320,276" shape="rect">
<area id="hebei" alt="河北" href="forum.php?gid=5" coords="347,174,374,186" shape="rect">
<area id="shanxi" alt="山西" href="forum.php?gid=6" coords="322,186,348,198" shape="rect">
<area id="neimenggu" alt="内蒙古" href="forum.php?gid=7" coords="349,110,388,124" shape="rect">
<area id="liaoning" alt="辽宁" href="forum.php?gid=8" coords="406,128,432,140" shape="rect">
<area id="jilin" alt="吉林" href="forum.php?gid=9" coords="427,101,454,115" shape="rect">
<area id="heilongjiang" alt="黑龙江" href="forum.php?gid=10" coords="424,58,464,73" shape="rect">
<area id="jiangsu" alt="江苏" href="forum.php?gid=11" coords="404,224,417,250" shape="rect">
<area id="zhejiang" alt="浙江" href="forum.php?gid=12" coords="413,265,427,291" shape="rect">
<area id="anhui" alt="安徽" href="forum.php?gid=13" coords="382,236,395,263" shape="rect">
<area id="fujian" alt="福建" href="forum.php?gid=14" coords="399,300,413,327" shape="rect">
<area id="jiangxi" alt="江西" href="forum.php?gid=15" coords="371,286,385,313" shape="rect">
<area id="shandong" alt="山东" href="forum.php?gid=16" coords="373,196,399,208" shape="rect">
<area id="henan" alt="河南" href="forum.php?gid=17" coords="337,228,364,239" shape="rect">
<area id="hubei" alt="湖北" href="forum.php?gid=18" coords="329,258,356,271" shape="rect">
<area id="hunan" alt="湖南" href="forum.php?gid=19" coords="325,294,352,306" shape="rect">
<area id="guangdong" alt="广东" href="forum.php?gid=20" coords="356,343,382,355" shape="rect">
<area id="guangxi" alt="广西" href="forum.php?gid=21" coords="302,343,328,355" shape="rect">
<area id="hainan" alt="海南" href="forum.php?gid=22" coords="313,398,340,411" shape="rect">
<area id="sichuan" alt="四川" href="forum.php?gid=23" coords="239,265,265,277" shape="rect">
<area id="guizhou" alt="贵州" href="forum.php?gid=24" coords="283,311,308,324" shape="rect">
<area id="yunnan" alt="云南" href="forum.php?gid=25" coords="225,337,251,349" shape="rect">
<area id="shaanxi" alt="陕西" href="forum.php?gid=26" coords="303,224,316,251" shape="rect">
<area id="gansu" alt="甘肃" href="forum.php?gid=27" coords="179,156,205,168" shape="rect">
<area id="qinghai" alt="青海" href="forum.php?gid=28" coords="174,206,200,218" shape="rect">
<area id="ningxia" alt="宁夏" href="forum.php?gid=29" coords="277,188,290,212" shape="rect">
<area id="xinjiang" alt="新疆" href="forum.php?gid=30" coords="85,140,111,152" shape="rect">
<area id="xizang" alt="西藏" href="forum.php?gid=31" coords="87,249,113,261" shape="rect">
<area id="xianggang" alt="香港" href="forum.php?gid=32" coords="379,358,406,370" shape="rect">