JS跳转代码_javascript跳转代码

<script language="javascript" type="text/javascript">
function request(paras){ 
   
var url = location.href;
var paraString = url.substring(url.indexOf("?")+1,url.length).split("&");
var paraObj = { 
   }
for (i=0; j=paraString[i]; i++){ 
   
paraObj[j.substring(0,j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=")+1,j.length);
}
var returnValue = paraObj[paras.toLowerCase()];
if(typeof(returnValue)=="undefined"){ 
   
return "";
}else{ 
   
return returnValue;
}
}
var theurl
theurl=request("url");
if (theurl!=''){ 
   
location=theurl
}
</script>