var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_btn_home4O = newImage('images/btn_home4O.gif');
		pre_btn_schedule4O = newImage('images/btn_schedule4O.gif');
		pre_btn_contact4O = newImage('images/btn_contact4O.gif');
		pre_btn_services4O = newImage('images/btn_services4O.gif');
		pre_btn_blog4O = newImage('images/btn_blog4O.gif');
		pre_btn_imagine4O = newImage('images/btn_imagine4O.gif');
		pre_btn_stories4O = newImage('images/btn_stories4O.gif');
		pre_btn_about4O = newImage('images/btn_about4O.gif');
		preloadFlag = true;
	}
}