var preloadFlag = false;
function preloadImages() {

	if (document.images) {
		nav_about2 = newImage('images/nav_about2.gif');
		pre_nav_contact2 = newImage('images/nav_contact2.gif');
		pre_nav_curriculum2 = newImage('images/nav_curriculum2.gif');
		pre_nav_kidsaction2 = newImage('images/nav_kidsaction2.gif');
		pre_nav_pta2 = newImage('images/nav_pta2.gif');
		pre_nav_admission2 = newImage('images/nav_admission2.gif');
		pre_nav_calendar2 = newImage('images/nav_calendar2.gif');
		pre_nav_handbook2 = newImage('images/nav_handbook2.gif');
		preloadFlag = true;
	}
}

function newImage(src) {
	img = new Image;
	img.src = src;
	return img;
}

function changeImages(id, src) {
	document.getElementById(id).src = src;
}