Can a javascript check for jQuery and load it if not already present?

Question

I\'m just looking for a simple javascript that can check to see if the jQuery library is already loaded and if not, loads it.

Thanks in advance if you have a solutio

Answer 1

if (typeof jQuery == 'undefined') {  
    // jQuery is not loaded => load it:
    var script = document.createElement('script');
    script.type = 'text/javascript';
    script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js';
    document.getElementsByTagName('body')[0].appendChild(script);
}