javscript:history.go(-1)在<a href.>里面如何用

javscript:history.go(-1)在<a href..>里面怎么用?
<a   href= "javscript:history.go(-1) "> </a>

地址变成了http://localhost/javscript:history.go(-1)了.

应该怎样用?

------解决方案--------------------
<a href= "# " onclick= "history.go(-1) "> <a>
------解决方案--------------------
<a onclick= "javscript: window.history.go(-1) " style= "cursor: hand; "> back </a>
------解决方案--------------------
错了是少个 "a " =_=|| ，汗