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_button_over = newImage("images/home_button-over.jpg");
		programs_button_home_button_over = newImage("images/programs_button-home_button.jpg");
		programs_button_over = newImage("images/programs_button-over.jpg");
		tryusout_button_programs_button_over = newImage("images/tryusout_button-programs_bu.jpg");
		tryusout_button_over = newImage("images/tryusout_button-over.jpg");
		team_button_tryusout_button_over = newImage("images/team_button-tryusout_button.jpg");
		team_button_over = newImage("images/team_button-over.jpg");
		testimonials_button_team_button_over = newImage("images/testimonials_button-team_bu.jpg");
		testimonials_button_over = newImage("images/testimonials_button-over.jpg");
		about_button_testimonials_button_over = newImage("images/about_button-testimonials_b.jpg");
		about_button_over = newImage("images/about_button-over.jpg");
		request_button_over = newImage("images/request_button-over.jpg");
		request_button_about_button_over = newImage("images/request_button-about_button.jpg");
		preloadFlag = true;
	}
}