利用JS自动打开页面上链接的实现代码

function randopen()
{
var len = $(“#urllist option”).length;
var num = 10;
for(i=1; i<=num; i++)
{
randnum = Math.random()*len;
zn = Math.round(randnum);
u = $(“#”+zn).val();
window.open(u,”urlfrm”+i);
}
}