If I have a lot of functions on startup do they all have to be under one single:
$(document).ready(function() {
or can I have multiple such
You can use multiple. But you can also use multiple functions inside one document.ready as well:
$(document).ready(function() { // Jquery $('.hide').hide(); $('.test').each(function() { $(this).fadeIn(); }); // Reqular JS function test(word) { alert(word); } test('hello!'); });