dom.ready.js

/*
	A Function for Watching the DOM Until It's Ready/Loaded
*/
function domReady( f ) {
	// If the DOM is already loaded, execute the function right away
	if( domReady.done ) return f();

	// If we've already added a function
	if( domReady.timer ) {
		// Add it to the list of functions to execute
		domReady.ready.push( f );
	} else {
		// Attach an event for when the page finishes loading,
		// just in case it finishes first. Usee addEvent.
		window.addEventListener( 'load', isDOMReady );

		// Initialize the array of functions to execute
		domReady.ready = [ f ];

		// Check to see if the DOM is ready as quickly as possible
		domReady.timer = setInterval( isDOMReady, 13 );
	}
}

// Checks to see if the DOM is ready for navigation
function isDOMReady() {
	// If we already figured out that the page is ready, ignore
	if( domReady.done ) return false;

	// Check to see if a number of functions and elements are able to be accessed
	if( document && document.getElementsByTagName && document.getElementById && document.body ) {
		// If they are ready, we can stop checking
		domReady.timer = null;

		// Execute all the functions that were waiting
		for ( var i =0; i < domReady.ready.length; i++ ) {
			domReady.ready[ i ]();
		}

		// Remeber that we are now done
		domReady.ready = null;
		domReady.done  = true;
	}
}