function preloadNavImages()
{
	var images = ['company', 'services', 'portfolio', 'casestudies', 'blog'];
	var imgs   = new Array();
	
	for (i = 0; i < images.length; i++)
	{
		imgs[i]     = new Image();
		imgs[i].src = '../images/navmenu_' + images[i] + '_over.gif';
	}
}