Reading 2 RFID on same arduino

hello guys, i'm making system read 2 rfid on same arduino.
i have code , need detect when serial read not available.

it works right on original rx input on simulated input never go "else", ever "available"

here code:

code: [select]

#include <softwareserial.h>
softwareserial id20(3,2);
int rfidresetpin = 13;
string tagstring;
string p2;
boolean dentro = false;
boolean dentro2 = true;

void setup(){
  serial.begin(9600);
  id20.begin(9600);
  pinmode(rfidresetpin, output);
  digitalwrite(rfidresetpin, high);
  pinmode(5, output);
 

}

void loop()
{ 
  delay(500);
  readproduto1();
  readproduto2();
  resetreader(); 
}
void readproduto1()
{
    char tagchar = 0;
    if(serial.available())
    {   
      while(serial.available())
      {     
        tagchar = serial.read();
        if (ishexadecimaldigit(tagchar))
        {
          tagstring += tagchar;
        }
      else
      {
         if (tagstring.length() > 0)
         {
             dentro = true; 
             serial.println(tagstring);
             tagstring = "";             
          }   
      }     
    }
  }
   else
  {
    serial.println("saiu1");
  }
 resetreader(); 
}

void readproduto2()
{
   char produto2 = 0;
   if(id20.available()>0)
   {
      while(id20.available())
      {
        produto2 = id20.read();
        if(ishexadecimaldigit(produto2))
        {
          p2 += produto2;
        }
        else
        {
           if(p2.length() > 0)
           {
              dentro2 = true;
              serial.println(p2);
              p2 = "";
        }
      }
    }
   }
//----------------------------------it never gets \/---------------------------------
   else
  {
    serial.println("saiu2");
  }
//----------------------------------------------------------------------------------------------
   resetreader(); 
 
}
void resetreader()
{
  digitalwrite(rfidresetpin, low);
  digitalwrite(rfidresetpin, high);
}




util informations !!
\/
i'm using reset on pin 13 , 2 rfid wired on same reset

i'm using id-20 innovation

quote

i have code , need detect when serial read not available.

the softwareserial class has available() method that.

put every { on new line.
put every } on new line. none of crap:

code: [select]

    }else{
it's impossible tell else "it never gets to" paired with.

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