javascript - request받기

<script>
 function myRequest(valuename)
 {
  var rtnval = "";
  var nowAddress = unescape(location.href);
  var parameters = (nowAddress.slice(nowAddress.indexOf("?")+1, nowAddress.length)).split("&");
  for(var i=0; i < parameters.length; i++)
  {
   var varName = parameters[i].split("=")[0];
   if(varName.toUpperCase() == valuename.toUpperCase())
   {
    rtnval = parameters[i].split("=")[1];
    break;
   }
  }
  //alert(rtnval); 
  return rtnval;
 }
var value = myRequest("goto");
if(value == "board")
{
 
}

</script>