var preloaded = new Array();
function preload_images() {
    for (var i = 0; i < arguments.length; i++){
        preloaded[i] = document.createElement('img');
        preloaded[i].setAttribute('src',arguments[i]);
    };
};
preload_images(
	'/images/top_navigation/phone_number.gif',
	'/images/top_navigation/about_impact_on.gif',
	'/images/top_navigation/news_on.gif',
	'/images/top_navigation/careers_on.gif',
	'/images/top_navigation/financing_on.gif',
	'/images/top_navigation/locations_on.gif',
	'/images/top_navigation/contact_on.gif',
	'/images/top_navigation/service_on.gif',
	'/images/strategic_services_on.gif',
	'/images/creative_services_on.gif',
	'/images/document_management_on.gif',
	'/images/scanning_services_on.gif',
	'/images/networking_telecom_on.gif',
	'/images/digital_office_equip_on.gif'
);