EXAMPLE

$("#pc_block").each(function(){

alert("im not always executed!");

if ( ar[ $(this).attr('name') ] )

{$(this).show("slow"); }

else

{$(this).hide("slow"); }

});

in some reason this statement executes only on first found element. but! if i make it like this

$("div[id=pc_block]").each ...

it executes on all elements on the page.

ive noticed this bug before, but only now decided to submit a ticket. and this bug can be really hard to localize...