ready()

ready(Function fn) returns jQuery

Bind a function to be executed whenever the DOM is ready to be traversed and manipulated. This is probably the most important function included in the event module, as it can greatly improve the response times of your web applications.
In a nutshell, this is a solid replacement for using window.onload, and attaching a function to that. By using this method, your bound function will be called the instant the DOM is ready to be read and manipulated, which is when what 99.99% of all JavaScript code needs to run.
There is one argument passed to the ready event handler: A reference to the jQuery function. You can name that argument whatever you like, and can therefore stick with the $ alias without risk of naming collisions.

Please ensure you have no code in your onload event handler, otherwise $(document).ready() may not fire.

Example:

$(document).ready(function(){ Your code here... });