ÿþf u n c t i o n   M M _ s w a p I m g R e s t o r e ( )   {   / / v 3 . 0  
     v a r   i , x , a = d o c u m e n t . M M _ s r ;   f o r ( i = 0 ; a & & i < a . l e n g t h & & ( x = a [ i ] ) & & x . o S r c ; i + + )   x . s r c = x . o S r c ;  
 }  
  
 f u n c t i o n   M M _ f i n d O b j ( n ,   d )   {   / / v 4 . 0 1  
     v a r   p , i , x ;     i f ( ! d )   d = d o c u m e n t ;   i f ( ( p = n . i n d e x O f ( " ? " ) ) > 0 & & p a r e n t . f r a m e s . l e n g t h )   {  
         d = p a r e n t . f r a m e s [ n . s u b s t r i n g ( p + 1 ) ] . d o c u m e n t ;   n = n . s u b s t r i n g ( 0 , p ) ; }  
     i f ( ! ( x = d [ n ] ) & & d . a l l )   x = d . a l l [ n ] ;   f o r   ( i = 0 ; ! x & & i < d . f o r m s . l e n g t h ; i + + )   x = d . f o r m s [ i ] [ n ] ;  
     f o r ( i = 0 ; ! x & & d . l a y e r s & & i < d . l a y e r s . l e n g t h ; i + + )   x = M M _ f i n d O b j ( n , d . l a y e r s [ i ] . d o c u m e n t ) ;  
     i f ( ! x   & &   d . g e t E l e m e n t B y I d )   x = d . g e t E l e m e n t B y I d ( n ) ;   r e t u r n   x ;  
 }  
  
 f u n c t i o n   M M _ s w a p I m a g e ( )   {   / / v 3 . 0  
     v a r   i , j = 0 , x , a = M M _ s w a p I m a g e . a r g u m e n t s ;   d o c u m e n t . M M _ s r = n e w   A r r a y ;   f o r ( i = 0 ; i < ( a . l e n g t h - 2 ) ; i + = 3 )  
       i f   ( ( x = M M _ f i n d O b j ( a [ i ] ) ) ! = n u l l ) { d o c u m e n t . M M _ s r [ j + + ] = x ;   i f ( ! x . o S r c )   x . o S r c = x . s r c ;   x . s r c = a [ i + 2 ] ; }  
 } 
