一种把人吓一跳的感觉。实现方法是，把下面的javascript代码加入到< body>与< /body>之间：
< script language="javascript">
function surfto(form) {
var myindex=form.select1.selectedindex
if (form.select1.options[myindex].value != null) {
parent.main.location.href=form.select1.options[myindex].value;
} }
< /script> //这段js代码意为当前页面的浏览器地震//
< script language="javascript1.2">
function shake(n) {
if (window.top.moveby) {
for (i = 10; i > 0; i--) {
for (j = n; j > 0; j--) {
window.top.moveby(0,i);
window.top.moveby(i,0);
window.top.moveby(0,-i);
window.top.moveby(-i,0);
} } }
alert("呀~~地震啦！没~~吓坏吧？^_*"); //这里设定地震后弹出的嬉戏性文字(据需随意)//
}
< /script>
< script language="javascript">