controle 2 led arduino

#include <SPI.h>
#include <Ethernet.h>

byte mac[] = {0x90, 0xA2, 0xDA, 0x0D, 0xF0, 0xA4 };
byte ip[]  = { 192, 168, 1, 30 };
byte gateway[] = { 192, 168, 0, 1 };
byte subnet[]  = { 255, 255, 255, 0 };

EthernetServer server(80);

int temp = 0;
int Pin2 = 2;
int Pin3 = 3;
boolean flag = true;

String Meldung = String("");
boolean Pin2ON = false;
boolean Pin3ON = false;
boolean refresh = false;

void setup() {
  pinMode(Pin3, OUTPUT);
  pinMode(Pin2, OUTPUT);


  Serial.begin(9600);
   while (!Serial) {
    ;
  }


  Ethernet.begin(mac, ip, gateway, subnet);
  server.begin();
  Serial.print("server is at ");
  Serial.println(Ethernet.localIP());
}


void loop() {

  EthernetClient client = server.available();
  if (client) {
    Serial.println("new client");

    boolean currentLineIsBlank = true;
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        Serial.write(c);
//--------------------------------------------------------------------------------------
                                                                //read char by char HTTP request
                                                                if (Meldung.length() < 12) {
                                                                  //store characters to string
                                                                  //Meldung.append(c);  //removed by Katsu
                                                                  Meldung = Meldung + c; // insert by Katsu
                                                                  // very simple but it works...
                                                                }
//-----------------------------------------------------------------------------------------*/
        // if you've gotten to the end of the line (received a newline
        // character) and the line is blank, the http request has ended,
        // so you can send a reply
        if (c == '\n' && currentLineIsBlank) {
//--------------------------------------------------------------------------------------------
                                                                  if(Meldung.indexOf("2=all") > -1) {
                                                                    digitalWrite(Pin2, LOW);
                                                                    Serial.println("Pin 2 allumer!");
                                                                    Pin2ON = true;
                                                                    flag = true;
                                                                  }
                                                                  if(Meldung.indexOf("2=ete") > -1){
                                                                    digitalWrite(Pin2, HIGH);
                                                                    Serial.println("Pin 2 éteindre!");
                                                                    Pin2ON = false;
                                                                    flag = true;
                                                                  }
                                                                  if(Meldung.indexOf("3=all") > -1) {
                                                                    digitalWrite(Pin3, LOW);
                                                                    Serial.println("Pin 3 allumer!");
                                                                    Pin3ON = true;
                                                                    flag = true;
                                                                  }
                                                                  if(Meldung.indexOf("3=ete") > -1){
                                                                    digitalWrite(Pin3, HIGH);
                                                                    Serial.println("Pin 3 éteindre!");
                                                                    Pin3ON = false;
                                                                    flag = true;
                                                                  }

                                                                  if(Meldung.indexOf("all=to") > -1){
                                                                    digitalWrite(Pin2, HIGH);
                                                                    digitalWrite(Pin3, HIGH);
                                                                    Serial.println("tout éteindre!");
                                                                    Pin2ON = false;
                                                                    Pin3ON = false;
                                                                    flag = true;
                                                                  }

                                                                  if(Meldung.indexOf("ref=ref") > -1){
                                                                    refresh = true;
                                                                  }
                                                                  else {
                                                                    refresh = false;
                                                                  }

//-----------------------------------------------------------------------------------------------*/
                                                              Meldung="";
          // send a standard http response header
          client.println("HTTP/1.1 200 OK");
          client.println("Content-Type: text/html");
          client.println("Connnection: close");
          client.println();
          client.println("<!DOCTYPE HTML>");
          client.println("<html>");
                                                              client.print("<head>");
                                                              client.print("<title>Arduino de chambre</title>");
                    // add a meta refresh tag, so the browser pulls again every 5 seconds:

//  Diese Zeile für den automatischen Abruf wieder einfügen; simuliert dann aber einen Mausklick auf das erste input-Feld.
// kann man sicher ändern, ich weiß aber im Moment nicht wie.
//          client.println("<meta http-equiv=\"refresh\" content=\"5\">");
          // output the value of each analog input pin
                                                              client.println("</head>");
                                                              client.print("<body bgcolor='#AAAAAA'>");
          //--------------------------HTML------------------------
                                                                    if (flag) {


                                                                      client.println("<br><hr />");
                                                                      client.print("<h1><div align='center'>");
                                                                      client.print("<font color='#2076CD'>Chambre de thibault BOULLIER ");
                                                                      client.println("</font></div></h1>");
                                                                      client.println("<hr /><br>");


                                                                      client.println("<br/>");
                                                                      client.print("<form method=get>");
                                                                      client.print("<input type=submit name=ref value='refresh'>");
                                                                      client.println("</form></td>");

                                                                      if (refresh) {
                                                                        client.println("<meta http-equiv=\"refresh\" content=\"5\">");
                                                                      }


                                                                      client.println("<div align='left'>");
                                                                      client.println("<br>");
                                                                      client.println("<table border='1' width='500' cellpadding='5'>");
                                                                      client.println("<tr bgColor='#222222'>");
                                                                      client.print("<td bgcolor='#222222'>");
                                                                      client.print("<font face='Verdana' color='#CFCFCF' size='2'>");
                                                                      client.println("led 2<br></font></td>");

                                                                      client.print("<td align='center' bgcolor='#222222'>");
                                                                      client.print("<form method=get>");
                                                                      client.print("<input type=submit name=2 value='allumer'>");
                                                                      client.println("</form></td>");
                                                                      client.print("<td align='center' bgcolor='#222222'>");
                                                                      client.print("<form method=get>");
                                                                      client.print("<input type=submit name=2 value='eteindre'>");
                                                                      client.println("</form></td>");
                                                                      client.print("<td align='center'>");

                                                                      if (Pin2ON) {
                                                                        client.print("<font color='green' size='5'>ON");
                                                                      } else {
                                                                        client.print("<font color='#CFCFCF' size='5'>OFF");
                                                                      }
                                                                      client.println("</font></td></tr>");
                                                                      client.println("<tr bgColor='#222222'>");
                                                                      client.print("<td bgcolor='#222222'>");
                                                                      client.print("<font face='Verdana' color='#CFCFCF' size='2'>");
                                                                      client.println("led 3<br></font></td>");
                                                                      client.print("<td align='center' bgcolor='#222222'>");
                                                                      client.println("<form method=get><input type=submit name=3 value='allumer'></form></td>");
                                                                      client.print("<td align='center' bgcolor='#222222'>");
                                                                      client.println("<form method=get><input type=submit name=3 value='eteindre'></form></td>");
                                                                      client.print("<td align='center'>");

                                                                      if (Pin3ON) {
                                                                        client.print("<font color='green' size='5'>ON");
                                                                      } else {
                                                                        client.print("<font color='#CFCFCF' size='5'>OFF");
                                                                      }
                                                                      client.println("</font></td></tr>");
                                                                      client.println("</table>");
                                                                      client.println("<br>");
                                                                      client.print("<form method=get>");
                                                                      client.print("<input type=submit name=all value='tout eteindre'>");
                                                                      client.println("</form>");  //*/
                                                                      client.println("</body>");
                                                                    }
//--------------------------------------------------------------------------------------------
          client.println("</html>");
                                                                      temp = temp +1;      // Damit sich auch was bewegt auf dem Bildschirm
          break;  //wozu?
        }
        if (c == '\n') {
          // you're starting a new line
          currentLineIsBlank = true;
        }
        else if (c != '\r') {
          // you've gotten a character on the current line
          currentLineIsBlank = false;
        }
      }
    }
    // give the web browser time to receive the data
    delay(1);
    // close the connection:
    client.stop();
    Serial.println("client disonnected");
  }
}