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) {
		btn_online_over = newImage("/images/btn-online-over.gif");
		btn_employment_over = newImage("/images/btn-employment-over.gif");
		btn_diversity_over = newImage("/images/btn-diversity-over.gif");
		btn_harassment_over = newImage("/images/btn-harassment-over.gif");
		btn_conflict_over = newImage("/images/btn-conflict-over.gif");
		btn_ourclients_over = newImage("/images/btn-ourclients-over.gif");
		btn_aboutus_over = newImage("/images/btn-aboutus-over.gif");
		btn_profile_over = newImage("/images/btn-profile-over.gif");
		btn_team_over = newImage("/images/btn-team-over.gif");
		btn_approach_over = newImage("/images/btn-approach-over.gif");
		btn_contactus_over = newImage("/images/btn-contactus-over.gif");
		preloadFlag = true;
	}
}