[jQuery] Quick simple syntax question.

[jQuery] Quick simple syntax question.


In one of the tutorials on this page:
http://docs.jquery.com/Tutorials:jQuery_For_Designers
in this bit of code, (on the starred line), the 'event' is passed to
the function that toggles the .thebody class.
I don't understand what this 'event' is and why is it passed on this
line and not any of the others..
Can someone possibly explain what its there for please? thanks.
// When the page is ready
$(document).ready(function(){
$(".article .thebody").hide();
$("#container .article ul")
.prepend("<li class='readbody'><a href='' title='Read the
article'>Read Body</a></li>");
******** $(".actions li.readbody a").click(function(event)
{ *********
$(this).parents("ul").prev(".thebody").toggle();
// Stop the link click from doing its normal thing
return false;
});
});