var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_btn_homeO = newImage('images/btn_homeO.gif');
		pre_btn_aboutO = newImage('images/btn_aboutO.gif');
		pre_btn_medliteO = newImage('images/btn_medliteO.gif');
		pre_btn_customersO = newImage('images/btn_customersO.gif');
		pre_btn_pictureO = newImage('images/btn_pictureO.gif');
		pre_btn_articlesO = newImage('images/btn_articlesO.gif');
		pre_btn_newsO = newImage('images/btn_NewsO.gif');
		pre_btn_grantsO = newImage('images/btn_GrantsO.gif');
		pre_btn_linksO = newImage('images/btn_linksO.gif');
		pre_btn_contactO = newImage('images/btn_contactO.gif');
		pre_btn_InfoMedliteO = newImage('images/btn_InfoMedliteO.gif');
		pre_btn_InfoFireliteBasicO = newImage('images/btn_InfoFireliteBasicO.gif');
		pre_btn_InfoPacerO = newImage('images/btn_InfoPacerO.gif');
		pre_btn_InfoFireliteDarleyO = newImage('images/btn_InfoFireliteDarleyO.gif');
		pre_btn_InfoFireliteDHannayO = newImage('images/btn_InfoFireliteDHannayO.gif');
		pre_btn_InfoEUVO = newImage('images/btn_InfoEUVO.gif');
		pre_btn_downloadPDFO = newImage('images/btn_downloadPDFO.gif');
		pre_btn_downloadWordO = newImage('images/btn_downloadWordO.gif');
		pre_btn_InfoFireliteTruckO = newImage('images/btn_InfoFireliteTruckO');
		pre_btn_forMedAtvUtvO = newImage('images/btn_forMedAtvUtvO.gif');
		pre_btn_forTrucksO = newImage('images/btn_forTrucksO.gif');
		pre_btn_forMedEuvO = newImage('images/btn_forMedEuvO.gif');
		pre_btn_weightChartO = newImage('images/btn_weightChartO.gif');


		preloadFlag = true;
	}
}