HTML链接上把当前的URL做为参数传递时,注意要对URL进行encode,在JS中我们这样实现

<a href="javascript:void(0)"

onclick="javascript:location.href='http://url/register/login

?reffer='+encodeURIComponent(location.href)">

  <img src="http://img1.c2cedu.com/image/search/images/bg_jc.gif" alt="我要纠错">
 </a>

</a>