more pwm code :

int pwm_ramp(unsigned int value, int pin, unsigned int speed)
{
    if (value < pwm_value) {
        if (pin == 0) {
            unsigned int i;
            for (i=pwm_value; i>=value; i-= speed) {
                OCR1AL = i;
                pwm_value = i;
            }
        }
    } else {
        if (pin == 0) {
            unsigned int i;
            for (i=0; i<=value; i+= speed) {
                OCR1AL = i;
                pwm_value = i;
            }
        }
    }
    return 1;
}