if (document.images)
    {   var aboutOff = new Image()
        aboutOff.src = "images/about.gif"
        var aboutOn = new Image()
        aboutOn.src = "images/abouta.gif"		
		
        var eventsOff = new Image()
        eventsOff.src = "images/events.gif"
        var eventsOn = new Image()
        eventsOn.src = "images/eventsa.gif"

        var registerOff = new Image()
        registerOff.src = "images/register.gif"
        var registerOn = new Image()
        registerOn.src = "images/registera.gif"

        var directoryOff = new Image()
        directoryOff.src = "images/directory.gif"
        var directoryOn = new Image()
        directoryOn.src = "images/directorya.gif"
		
        var photosOff = new Image()
        photosOff.src = "images/photos.gif"
        var photosOn = new Image()
        photosOn.src = "images/photosa.gif"
		
        var contactOff = new Image()
        contactOff.src = "images/contact.gif"
        var contactOn = new Image()
        contactOn.src = "images/contacta.gif"			
		
		var exhibitorsOff = new Image()
        exhibitorsOff.src = "images/exhibitors.gif"
        var exhibitorsOn = new Image()
        exhibitorsOn.src = "images/exhibitorsa.gif"	
}		
function inact(imgName)
{
	if(document.images)
		document[imgName].src = eval(imgName+'Off.src')
}

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

// -->