void ltrim ( char *s )
{
	char *p;
	p = s;
	while ( *p == ' ' || *p == '\t' ) {*p++;}
	strcpy ( s,p );
}

void rtrim ( char *s )
{
	int i;

	i = strlen ( s )-1;
	while ( ( s[i] == ' ' || s[i] == '\t' ) && i >= 0 ) {i--;};
	s[i+1] = '\0';
}

void trim ( char *s )
{
	ltrim ( s );
	rtrim ( s );
}