// PRELOAD IMAGES						
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) {
		home_over = newImage("_images/btn_home_on.gif");
	    facilities_over = newImage("_images/btn_facilities_on.gif");
		services_over = newImage("_images/btn_services_on.gif");
		biz_over = newImage("_images/btn_biz_on.gif");
		personnel_over = newImage("_images/btn_personnel_on.gif");
		software_over = newImage("_images/btn_software_on.gif");
		projects_over = newImage("_images/btn_projects_on.gif");
		contact_over = newImage("_images/btn_contact_on.gif");
		preloadFlag = true;
	}
}