function getAppVersion() {
	brname = navigator.appName;
	brversion = navigator.appVersion;
	majorver = brversion.substring(0,1);
	if ( (brname == "Netscape") && (majorver >= 3) ) return 1;
	if ( (brname == "Microsoft Internet Explorer") && (majorver >= 4) ) return 1;
	return 0;
}

function swap(num, name) {
	if (getAppVersion()) { document[name].src = img[num].src; }
}


images = new Array();

images[0] = "images/aboutus_off.jpg";
images[1] = "images/aboutus_on.jpg";
images[2] = "images/people_off.jpg";
images[3] = "images/people_on.jpg";
images[4] = "images/capabilities_off.jpg";
images[5] = "images/capabilities_on.jpg";
images[6] = "images/projects_off.jpg";
images[7] = "images/projects_on.jpg";
images[8] = "images/careers_off.jpg";
images[9] = "images/careers_on.jpg";
images[10] = "images/contactus_off.jpg";
images[11] = "images/contactus_on.jpg";

images[12] = "images/picaboutus_off.jpg";
images[13] = "images/picaboutus_on.jpg";
images[14] = "images/picpeople_off.jpg";
images[15] = "images/picpeople_on.jpg";
images[16] = "images/piccapabilities_off.jpg";
images[17] = "images/piccapabilities_on.jpg";
images[18] = "images/picprojects_off.jpg";
images[19] = "images/picprojects_on.jpg";
images[20] = "images/piccareers_off.jpg";
images[21] = "images/piccareers_on.jpg";
images[22] = "images/piccontactus_off.jpg";
images[23] = "images/piccontactus_on.jpg";

if (getAppVersion()) {
	img = new Array();
	for (i = 0; i < images.length; i++) {
		img[i] = new Image();
		img[i].src = images[i];
	}
}