function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pc_nav_services_o = newImage("/box/pc_nav_services_o.gif");
		pc_nav_solutions_o = newImage("/box/pc_nav_solutions_o.gif");
		pc_nav_clients_o = newImage("/box/pc_nav_clients_o.gif");
		pc_nav_ventures_o = newImage("/box/pc_nav_ventures_o.gif");
		pc_nav_aboutus_o = newImage("/box/pc_nav_aboutus_o.gif");

		pc_ns_onlinemarketing_o = newImage("/box/pc_ns_onlinemarketing_o.gif");
		pc_ns_websitedesign_o = newImage("/box/pc_ns_websitedesign_o.gif");
		pc_ns_contentmanagement_o = newImage("/box/pc_ns_contentmanagement_o.gif");
		pc_ns_intranetsportals_o = newImage("/box/pc_ns_intranetsportals_o.gif");
		pc_ns_workflowbpm_o = newImage("/box/pc_ns_workflowbpm_o.gif");
		pc_ns_usabilitytesting_o = newImage("/box/pc_ns_usabilitytesting_o.gif");
		pc_ns_namingbranding_o = newImage("/box/pc_ns_namingbranding_o.gif");
		pc_ns_traditionalservices_o = newImage("/box/pc_ns_traditionalservices_o.gif");
		pc_ns_causeeffect_o = newImage("/box/pc_ns_causeeffect_o.gif");
		pc_ns_strategicconsulting_o = newImage("/box/pc_ns_strategicconsulting_o.gif");
		preloadFlag = true;
	}
}