var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_button_cultuur_down = newImage('imgs/buttons/button-cultuur-down.jpg');
		pre_button_indiv_down = newImage('imgs/buttons/button-indiv-down.jpg');
		pre_button_refer_down = newImage('imgs/buttons/button-refer-down.jpg');
		pre_button_contact_down = newImage('imgs/buttons/button-contact-down.jpg');
		pre_button_teams_down = newImage('imgs/buttons/button-teams-down.jpg');
		pre_button_home_down = newImage('imgs/buttons/button-home-down.jpg');
		pre_button_masterclass_down = newImage('imgs/buttons/button-masterclass-down.jpg');
		preloadFlag = true;
	}
}