Automatically Load jQuery

The following JavaScript code will automatically load jQuery if it is not already loaded on the current page. This is particularly useful if you need to load jQuery into a bookmarklet. It's also useful in any situation where you can access the JS code on the page but not the HTML code.

// -------------------------------------------------------------------------
// Load JQuery if it's not already loaded.
// -------------------------------------------------------------------------
function loadJQuery() {
		
	//if the jQuery object isn't available
	if (typeof(jQuery) == 'undefined') {
	  
  		// Load jQuery from Google
		var fileref=document.createElement('script')
		fileref.setAttribute("type","text/javascript")
		fileref.setAttribute("src", "http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js")
		document.getElementsByTagName("head")[0].appendChild(fileref);
			
	}
		        
}