lcd menu

//REV2

unsigned char WaitForInput(void){
    unsigned char done = 0; //DONE Var will determine if done and hold key

    while(!done){                                  //while done == 0
        if (Button(&PORTA, MENU, 1, 0)){
              Delay_ms(10);
              done = MENU;
        }
        if (Button(&PORTA, UP, 1, 0)){
              Delay_ms(10);
              done = UP;
        }
        if (Button(&PORTA, DOWN, 1, 0)){
              Delay_ms(10);
              done = DOWN;
        }
    }
    return done;                                  //Return our done/key var
}

 do {
        switch(WaitForInput()){
           case MENU:
              Delay_ms(100);
              MainMenu();
              break;
        }
        read_temp();
     } while (1);

               if (Button(&PORTA, MENU, 1, 0))
                   MainMenu();

      for(tmp=0;tmp<5;tmp++){
        ADCON0bits.GO = 1;          //Start the conversion
        while(ADCON0bits.DONE);     //Wait until it’s done
        result = ADRESH;            //Load ADRESH into result
        result <<= 8;               //Shift over Result 8 bits to the left
        result |= ADRESL;           //OR in our LOW byte to finish off out INT
        avg[tmp] = result;  
[B]        if(KeyPORT == MENU) MainMenu();[/B]
        DelayMS(40);
      }       
        result = 0;
        for(tmp=0;tmp<5;tmp++){
            result += avg[tmp];
        }
        result /= 5;
        if(result==oldresult) goto tSame;
        
        DegC = (result*5)/10;
        DegC--;

        DegF = DegC * 9;
        DegF/=5;
        DegF+=32;
        //clear LCD temp buffer
[B]        if(KeyPORT == MENU) MainMenu();[/B]
        for(tmp=0;tmp<16;tmp++)
            lcdtmp[tmp] = ' ';

    if(MyView == 'F'){
        lcdtmp[0] = DECtoASCII(DegF,'h');
        lcdtmp[1] = DECtoASCII(DegF,'l');
        lcdtmp[2] = 0xDF;
        lcdtmp[3] = 'F';
        lcdtmp[4] = ' ';
    } else {
        lcdtmp[0] = DECtoASCII(DegC,'h');
        lcdtmp[1] = DECtoASCII(DegC,'l');
        lcdtmp[2] = 0xDF;
        lcdtmp[3] = 'C';
        lcdtmp[4] = ' ';
    }
[B]        if(KeyPORT == MENU) MainMenu();[/B]
        LCD_LINE(2);
        LCD_STR((unsigned rom char*)"Temp: ");

        LCD_STR2(lcdtmp);
        DelayMS(DelayTime);

        oldresult = result;