// load images

// "off" buttons
homeOff=new Image();
homeOff.src="images/nav_homeOff.gif";
aboutOff=new Image();
aboutOff.src="images/nav_aboutOff.gif";
contestOff=new Image();
contestOff.src="images/nav_contestOff.gif";
questionOff=new Image();
questionOff.src="images/nav_questionOff.gif";
sponsorshipOff=new Image();
sponsorshipOff.src="images/nav_sponsorshipOff.gif";
newsOff=new Image();
newsOff.src="images/nav_newsOff.gif";
previousOff=new Image();
previousOff.src="images/nav_previousOff.gif";
rulesOff=new Image();
rulesOff.src="images/nav_rulesOff.gif";
faqOff=new Image();
faqOff.src="images/nav_faqOff.gif";
registrationOff=new Image();
registrationOff.src="images/nav_registrationOff.gif";
mailingOff=new Image();
mailingOff.src="images/nav_mailingOff.gif";
participateOff=new Image();
participateOff.src="images/nav_participateOff.gif";
teachersOff=new Image();
teachersOff.src="images/nav_teachersOff.gif";
linksOff=new Image();
linksOff.src="images/nav_linksOff.gif";
nhaOff=new Image();
nhaOff.src="images/nav_nhaOff.gif";
conferenceOff=new Image();
conferenceOff.src="images/nav_conferenceOff.gif";
jobsOff=new Image();
jobsOff.src="images/nav_jobsOff.gif";
contactOff=new Image();
contactOff.src="images/nav_contactOff.gif";

// "on" buttons
homeOn=new Image();
homeOn.src="images/nav_homeOn.gif";
aboutOn=new Image();
aboutOn.src="images/nav_aboutOn.gif";
contestOn=new Image();
contestOn.src="images/nav_contestOn.gif";
questionOn=new Image();
questionOn.src="images/nav_questionOn.gif";
sponsorshipOn=new Image();
sponsorshipOn.src="images/nav_sponsorshipOn.gif";
newsOn=new Image();
newsOn.src="images/nav_newsOn.gif";
participateOn=new Image();
participateOn.src="images/nav_participateOn.gif";
previousOn=new Image();
previousOn.src="images/nav_previousOn.gif";
rulesOn=new Image();
rulesOn.src="images/nav_rulesOn.gif";
faqOn=new Image();
faqOn.src="images/nav_faqOn.gif";
registrationOn=new Image();
registrationOn.src="images/nav_registrationOn.gif";
mailingOn=new Image();
mailingOn.src="images/nav_mailingOn.gif";
teachersOn=new Image();
teachersOn.src="images/nav_teachersOn.gif";
linksOn=new Image();
linksOn.src="images/nav_linksOn.gif";
nhaOn=new Image();
nhaOn.src="images/nav_nhaOn.gif";
conferenceOn=new Image();
conferenceOn.src="images/nav_conferenceOn.gif";
jobsOn=new Image();
jobsOn.src="images/nav_jobsOn.gif";
contactOn=new Image();
contactOn.src="images/nav_contactOn.gif";


// rollover functions
function imgOff(imgName)
	{
	document[imgName].src=eval(imgName + "Off.src");
	}

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