if (document.images) {
		var nav_differentA = new Image()
		nav_differentA.src = "images/nav_different_off.gif"
		var nav_differentZ = new Image()
		nav_differentZ.src = "images/nav_different_on.gif"
		
		var nav_servicesA = new Image()
		nav_servicesA.src = "images/nav_services_off.gif"
		var nav_servicesZ = new Image()
		nav_servicesZ.src = "images/nav_services_on.gif"
		
		var nav_storiesA = new Image()
		nav_storiesA.src = "images/nav_stories_off.gif"
		var nav_storiesZ = new Image()
		nav_storiesZ.src = "images/nav_stories_on.gif"
		
		var nav_pricingA = new Image()
		nav_pricingA.src = "images/nav_pricing_off.gif"
		var nav_pricingZ = new Image()
		nav_pricingZ.src = "images/nav_pricing_on.gif"
		
		var nav_contactA = new Image()
		nav_contactA.src = "images/nav_contact_off.gif"
		var nav_contactZ = new Image()
		nav_contactZ.src = "images/nav_contact_on.gif"
		
		var nav_tipsA = new Image()
		nav_tipsA.src = "images/nav_tips_off.gif"
		var nav_tipsZ = new Image()
		nav_tipsZ.src = "images/nav_tips_on.gif"
}

function act(imgName) {
		if (document.images)
		document[imgName].src = eval(imgName + 'Z.src')
}

function inact(imgName) {
		if (document.images)
		document[imgName].src = eval(imgName + 'A.src')
}