[jQuery] Selecting Children Of $(this)

[studiobl]

I'm working on a wireframe for an ecommerce site. I need to simulate
some shopping cart functionality, like updating total counts and
dollar amounts on change(). I've already done this with a page that
contains one table. This page contains multiple tables, so I need to
add another loop:

from

<--

$(".someGrid input").each(function(){
//some kind of code...
});

-->

to

<--

$(".someGrid").each(function(){
$(this + " input").each(function(){
//some kind of code
});
});

-->

The problem is, the second one isn't working. How can I loop through
the tables, then loop through the inputs they contain?