void sortAr( int studentID[], float progAvg[], float testAvg[],float overallAvg[], int studentcount)
  {
   int top = 0, last = 19, ptr, ssf;
   double temp;
   if ( top < last)
   	{
		ptr = top;
		ssf = top;
		
		if ( ptr <= last)
			{
			if ( studentID[ptr] < studentID[ssf])
				{
				 ssf = ptr;
				}
			ptr++;
			
			}
			
		temp = studentID[top];
		studentID[top] = studentID[ssf];
		studentID[ssf] = temp;
		
		temp = progAvg[top];
		progAvg[top] = progAvg[ssf];
		progAvg[ssf] = temp;
		
		temp = testAvg[top];
		testAvg[top] = testAvg[ssf];
		testAvg[ssf] = temp;
		
		top++;	  
			
   	}
   
   
  }