if (document.images) {
	homeOn = new Image();
	homeOn.src = "images/nav/home_on.gif";
	homeOff = new Image();
	homeOff.src = "images/nav/home_off.gif";
	powerful_performanceOn = new Image();
	powerful_performanceOn.src = "images/nav/powerful_performance_on.gif";
	powerful_performanceOff = new Image();
	powerful_performanceOff.src = "images/nav/powerful_performance_off.gif";
	find_your_airhogOn = new Image();
	find_your_airhogOn.src = "images/nav/find_your_airhog_on.gif";
	find_your_airhogOff = new Image();
	find_your_airhogOff.src = "images/nav/find_your_airhog_off.gif";
	long_lifeOn = new Image();
	long_lifeOn.src = "images/nav/long_life_on.gif";
	long_lifeOff = new Image();
	long_lifeOff.src = "images/nav/long_life_off.gif";
	installOn = new Image();
	installOn.src = "images/nav/install_on.gif";
	installOff = new Image();
	installOff.src = "images/nav/install_off.gif";
	cleaningOn = new Image();
	cleaningOn.src = "images/nav/cleaning_on.gif";
	cleaningOff = new Image();
	cleaningOff.src = "images/nav/cleaning_off.gif";
	service_tipsOn = new Image();
	service_tipsOn.src = "images/nav/service_tips_on.gif";
	service_tipsOff = new Image();
	service_tipsOff.src = "images/nav/service_tips_off.gif";
	faqOn = new Image();
	faqOn.src = "images/nav/faq_on.gif";
	faqOff = new Image();
	faqOff.src = "images/nav/faq_off.gif";
	extrasOn = new Image();
	extrasOn.src = "images/nav/extras_on.gif";
	extrasOff = new Image();
	extrasOff.src = "images/nav/extras_off.gif";
	apparelOn = new Image();
	apparelOn.src = "images/nav/apparel_on.gif";
	apparelOff = new Image();
	apparelOff.src = "images/nav/apparel_off.gif";
	privacy_policyOn = new Image();
	privacy_policyOn.src = "images/privacy_policy_on.gif";
	privacy_policyOff = new Image();
	privacy_policyOff.src = "images/privacy_policy_off.gif";
}

function imgOn(imgName) { if (document.images) { document[imgName].src = eval(imgName + "On.src"); } }

function imgOff(imgName) { if (document.images) { document[imgName].src = eval(imgName + "Off.src"); } }