b1v = new Image();
b1v.src = "images/but_home_on.gif";
b1u = new Image();
b1u.src = "images/but_home.gif";

b2v = new Image();
b2v.src = "images/but_chair_on.gif";
b2u = new Image();
b2u.src = "images/but_chair.gif";

b3v = new Image();
b3v.src = "images/but_timetable_on.gif";
b3u = new Image();
b3u.src = "images/but_timetable.gif";

b4v = new Image();
b4v.src = "images/but_route_on.gif";
b4u = new Image();
b4u.src = "images/but_route.gif";

b5v = new Image();
b5v.src = "images/but_desthigh_on.gif";
b5u = new Image();
b5u.src = "images/but_desthigh.gif";

b6v = new Image();
b6v.src = "images/but_contact_on.gif";
b6u = new Image();
b6u.src = "images/but_contact.gif";

b7v = new Image();
b7v.src = "images/but_feedback_on.gif";
b7u = new Image();
b7u.src = "images/but_feedback.gif";

b8v = new Image();
b8v.src = "images/but_profile_on.gif";
b8u = new Image();
b8u.src = "images/but_profile.gif";

b1txt = new String('Home')
b2txt = new String('Chairman`s Message')
b3txt = new String('Timetable')
b4txt = new String('Route Map')
b5txt = new String('Destination Highlights')
b6txt = new String('Contact Details')
b7txt = new String('Feedback')
b8txt = new String('Company Profile')

function img_ov(imgName) {
        imgOn = eval(imgName + "v.src");
        document.images[imgName].src = imgOn;
	self.status = eval(imgName + "txt");
	return 1;
}

function img_ou(imgName) {
        imgOff = eval(imgName + "u.src");
        document.images[imgName].src = imgOff;
	self.status = "Interair South Africa";
	return 1;
}