How can I use jQuery to determine if a click event fires within a specific element?

I'm using the following code to animate a block. In my code, div_animate() essentially hides a <div> with the specified selector if it is currently visible.

$(document).click(function(event){
    div_animate("#container");
});

I need to determine whether the user clicked on a child of #container and if so, return false; -- as far as I can tell, the code for this would look something like this:

$(document).click(function(event){
    if ( /* the event's target has a parent of #container */ ) {
        return false;
    } else {
        div_animate("#container");
    }
});

Any thoughts?