var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_btn_home_over = newImage('<?=$abs;?>images/btn-home-over.gif');
		pre_btn_about_over = newImage('<?=$abs;?>images/btn-about-over.gif');
		pre_btn_conservation_over = newImage('<?=$abs;?>images/btn-conservation-over.gif');
		pre_btn_departments_over = newImage('<?=$abs;?>images/btn-departments-over.gif');
		pre_btn_forms_over = newImage('<?=$abs;?>images/btn-forms-over.gif');
		pre_btn_employment_over = newImage('<?=$abs;?>images/btn-employment-over.gif');
		pre_btn_rates_over = newImage('<?=$abs;?>images/btn-rates-over.gif');
		pre_btn_contact_over = newImage('<?=$abs;?>images/btn-contact-over.gif');
		pre_btn_top_paynow_over = newImage('<?=$abs;?>images/btn-top-paynow-over.gif');
		pre_btn_top_account_over = newImage('<?=$abs;?>images/btn-top-account-over.gif');
		pre_btn_top_paybills_over = newImage('<?=$abs;?>images/btn-top-paybills-over.gif');
		preloadFlag = true;
	}
}