html页面自动跳转

<script type="javascrpit">

var url='';//需要跳转的页面

var search = window.location.search;

if(search){

  if(url.indexOf("?")!=-1)

  {

    url+="&";

  }else

  {

    url+="?";

  }

  url +=search.substr(1)+window.location.hash;

}

window.location.href=url;

</script>