looping prob for loop

Hey guys in this function my for loop is stuffin up its goin in a neverending loop for some reason?

Code:

void totalDays(unsigned month, unsigned year, int ar[])
{
   /*int i;
   
    print out the array in main the months
   for(i=0; i<MAX_MONTH; i++)
   {
   printf("days array hello:%d\n", ar[i]);
   } */
   
   
   int i;
   int md=0;
   int leap=0;
   int startYear = 1900;
   int track;
   unsigned int d, yrd;
   
   /* starts from 1900 goes to the input year*/
   for(i=startYear; i<year; i++) 
   {
       /* check if that year is a leap year*/
       if((i%4==0)&&((i%100!=0) || (i%400==0)))
       {
           leap++;  /* add exstra day*/
	   
       }
   } 
   
   for(i=0; i<(month-1)&&(i<11); i++)
   {
           md=md+ar[i]; 
	   yrd = (year-startYear)*365;
           d=yrd+leap+md;
	   
           track=d%7;
   }   
           printf("ello%d\n", month);
	   displayCalendar(month, year, ar, &track);
   
   
   
  /* return ar[i] ;*/
}

Hey there,

Did not spot an endless loop with a debug, maybe you input year as yy? Like '98' instead of '1998'?

greetz

Perhaps the infinite loop is in displayCalendar().