Several common ways to jump to js pages_javascript skills

< script language="javascript">
alert("Illegal access!");
top.location='jb51.jsp';

< ;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
}