Servo motor program

often when ask question ends being obvious, right not obvious me.  trying increment servo motor 1 degree (0-180) every time button pushed (buttonpin).  have led (ledpin) attached indicator tells me program seeing button pushed. there no errors in program not working way want.  instead of increment 1 degree per button push servo motor moves 180 degrees , resets 0. 
below code.

code: [select]

const int buttonpin = 2;
const int ledpin = 4;
int buttonstate = 0;
int buttonpushcounter = 0;
int lastbuttonstate = 0;
#include <servo.h>;
servo myservo;


void setup() {
  pinmode (buttonpin, input);
  pinmode (ledpin, output);
  myservo.attach(9);
}
  void loop() {
    buttonstate = digitalread (buttonpin);
    if (buttonstate != lastbuttonstate) {
    if (buttonstate == high) {
      digitalwrite (ledpin, high);
      buttonpushcounter++;}
      (buttonpushcounter>-1;buttonpushcounter<180;buttonpushcounter +=1){
        myservo.write(buttonpushcounter);
        delay(10);}}

    else {
      digitalwrite (ledpin, low);
      myservo.write(buttonpushcounter);
      delay (10);
    }
    lastbuttonstate = buttonstate;
  }
thank you. 

it's because inside if goes when button state high, have whole sweep 0-180 for.

you need have line increments pos when goes there, , write new pos.

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