arduino web server processing input

processing.ino

while (client.connected()) {
      if (client.available()) {
        if(finder.find("GET /")) {
           while(finder.findUntil("led", "\n\r")) {
             char type = client.read();
             int val = finder.getValue();
             lightStatus = changeLight(val);
           } 
        }
        //pass a simple http response to the browser
        printWebResponse(client, lightStatus);
        break;
      }
}