function preloadImages() {
	if ($.cookie('preload_images') == null) {
		var imgArray = new Array();
		
		// visual
		imgArray.push(siteRoot + tpath + 'images/visual_about.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_about2.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_projects.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_projects2.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_academics.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_academics2.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_summary.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_summary2.png');
		imgArray.push(siteRoot + tpath + 'images/visual_news.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_mass-media.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_quotes.jpg');
		imgArray.push(siteRoot + tpath + 'images/visual_contact.jpg');
		imgArray.push(siteRoot + tpath + 'images/bg_error.jpg');		
		
		var imageObj = new Image();
		
		for (i=0; i<imgArray.length-1; i++)
			imageObj.src = imgArray[i];
	   
		$.cookie('preload_images', 'no', {path: '/'});
    }
}