javascript - ...scrollTop($(this)...) -

i have few divs .class class scroll position defined child of parent, need assign scrolltop() $(this),

$(".class").scrolltop($(this).parent().find('.child').scrolltop());  

but code doesn't work...

$(".class").scrolltop(     function(){         $(this).parent().find('.child').scrolltop()     } ); 

doesn't work either. clue?

this assuming reading question right. have mulitple "class" elements have own "child" elements. need use each set every element separately.

$(".class").each(     function(){         var elem = $(this);         var childsscrollposition = elem.parent().find('.child').scrolltop();         elem.scrolltop(childsscrollposition);     } );