jQuery: Count number of list elements?
Try:
$("#mylist li").length
Just curious: why do you need to know the size? Can't you just use:
$("#mylist").append("<li>New list item</li>");
?
var listItems = $("#myList").children();
var count = listItems.length;
Of course you can condense this with
var count = $("#myList").children().length;
For more help with jQuery, http://docs.jquery.com/Main_Page is a good place to start.