$(function(){
	// preload the navigation images
	$.preloadImages(
		'img/link_document_storage.png',
		'img/link_document_storage_down.png',
		'img/link_media_storage.png',
		'img/link_media_storage_down.png',
		'img/link_scanning_imaging.png',
		'img/link_scanning_imaging_down.png',
		'img/link_shredding_destruction.png',
		'img/link_shredding_destruction_down.png'
	);
});