- (int) getRemainDate
{
 NSArray* arrayTemp=[m_strDueDate componentsSeparatedByString:@"~"];
 
 NSLog(@"사용기간 : %@", [arrayTemp objectAtIndex:1]);
 
 NSString* strDate;
 strDate=[arrayTemp objectAtIndex:1];
 
 strDate=[strDate stringByReplacingOccurrencesOfString:@"년" withString:@"-"];
 strDate=[strDate stringByReplacingOccurrencesOfString:@"월" withString:@"-"];
 strDate=[strDate stringByReplacingOccurrencesOfString:@"일" withString:@""];
 strDate=[strDate stringByReplacingOccurrencesOfString:@" " withString:@""];
 strDate=[strDate stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
 strDate=[strDate stringByAppendingString:@" 23:59:59 +0900"];
 NSLog(@"string count = %d, %@", [strDate length], strDate);
 
 NSDate* today=[NSDate date];
 
 NSString* systemVersion=[[NSString alloc] initWithString:[[UIDevice currentDevice]systemVersion]];
 
 if([systemVersion compare:@"4.1" options:NSCaseInsensitiveSearch]==NSOrderedAscending){
  // do nothing
 }else{
  NSTimeZone* currentTimeZone=[NSTimeZone localTimeZone];
  NSInteger currentGMTOffset=[currentTimeZone secondsFromGMT];
  today=[today dateByAddingTimeInterval:currentGMTOffset];
 }
  
 NSLog(@"today = %@", today); 
 
 NSDate* theDate;
 theDate=[[NSDate alloc]initWithString:strDate];
 
 NSTimeInterval diff=[theDate timeIntervalSinceDate:today];
 int days=diff/60/60/24;
 
 m_nRemainDueDate=days;
 
 [systemVersion release];
 [theDate release];
 
 return m_nRemainDueDate;
}

- (void) ChangeBgcolor
{
 NSLog(@"%@", m_strHtml);
 
 if(m_nRemainDueDate<0 || m_nBalance==0){
  m_strHtml=[m_strHtml stringByReplacingOccurrencesOfString:@"<table width=300 height=380>" withString:@"<table width=300 height=380 bgcolor=gray>"];
  [m_strHtml retain];
 }else if(m_nRemainDueDate<30 && m_nBalance>0){
  //backgroundColor=[UIColor orangeColor];
 }else {
  //backgroundColor=[UIColor whiteColor];
 }
 NSLog(@"%@", m_strHtml);
}