var one0, one1, two0, two1, three0, three1, four0, four1, five0, five1, six0, six1, seven0, seven1, eight0, eight1;

window.onerror = null;
var netscape = 0;
var goodIE = 0;

browserName = navigator.appName.substring(0,8);
browserVer = parseFloat(navigator.appVersion);
if (browserName == "Netscape" && browserVer >= 3)
{ netscape = 1; }
if (browserName == "Microsof" && browserVer >= 4)
{ goodIE = 1; }

if (netscape || goodIE) {

zero0 = new Image(39,25);
zero0.src = "/images/nav_caltech_off.gif";
zero1 = new Image(39,25);
zero1.src = "/images/nav_caltech_on.gif";

one0 = new Image(39,25);
one0.src = "/images/nav_home_off.gif";
one1 = new Image(39,25);
one1.src = "/images/nav_home_on.gif";

two0 = new Image(96,25);
two0.src = "/images/nav_sitemap_off.gif";
two1 = new Image(96,25);
two1.src = "/images/nav_sitemap_on.gif";

three0 = new Image(38,25);
three0.src = "/images/nav_privacy_off.gif";
three1 = new Image(38,25);
three1.src = "/images/nav_privacy_on.gif";

four0 = new Image(38,25);
four0.src = "/images/nav_links_off.gif";
four1 = new Image(38,25);
four1.src = "/images/nav_links_on.gif";


profile_1_0 = new Image(38,25);
profile_1_0.src = "/images/portal_profiles_1.jpg";
profile_1_1 = new Image(38,25);
profile_1_1.src = "/images/portal_profiles_1_on.jpg";

profile_2_0 = new Image(38,25);
profile_2_0.src = "/images/portal_profiles_2.jpg";
profile_2_1 = new Image(38,25);
profile_2_1.src = "/images/portal_profiles_2_on.jpg";

profile_3_0 = new Image(38,25);
profile_3_0.src = "/images/portal_profiles_3.jpg";
profile_3_1 = new Image(38,25);
profile_3_1.src = "/images/portal_profiles_3_on.jpg";

profile_4_0 = new Image(38,25);
profile_4_0.src = "/images/portal_profiles_4.jpg";
profile_4_1 = new Image(38,25);
profile_4_1.src = "/images/portal_profiles_4_on.jpg";

profile_5_0 = new Image(38,25);
profile_5_0.src = "/images/portal_profiles_5.jpg";
profile_5_1 = new Image(38,25);
profile_5_1.src = "/images/portal_profiles_5_on.jpg";


client_1_0 = new Image(38,25);
client_1_0.src = "/images/portal_clientSpotlight_1.jpg";
client_1_1 = new Image(38,25);
client_1_1.src = "/images/portal_clientSpotlight_1_on.jpg";

client_2_0 = new Image(38,25);
client_2_0.src = "/images/portal_clientSpotlight_2.jpg";
client_2_1 = new Image(38,25);
client_2_1.src = "/images/portal_clientSpotlight_2_on.jpg";

client_3_0 = new Image(38,25);
client_3_0.src = "/images/portal_clientSpotlight_3.jpg";
client_3_1 = new Image(38,25);
client_3_1.src = "/images/portal_clientSpotlight_3_on.jpg";

client_4_0 = new Image(38,25);
client_4_0.src = "/images/portal_clientSpotlight_4.jpg";
client_4_1 = new Image(38,25);
client_4_1.src = "/images/portal_clientSpotlight_4_on.jpg";

client_5_0 = new Image(38,25);
client_5_0.src = "/images/portal_clientSpotlight_5.jpg";
client_5_1 = new Image(38,25);
client_5_1.src = "/images/portal_clientSpotlight_5_on.jpg";

client_6_0 = new Image(38,25);
client_6_0.src = "/images/portal_clientSpotlight_6.jpg";
client_6_1 = new Image(38,25);
client_6_1.src = "/images/portal_clientSpotlight_6_on.jpg";

client_7_0 = new Image(38,25);
client_7_0.src = "/images/portal_clientSpotlight_7.jpg";
client_7_1 = new Image(38,25);
client_7_1.src = "/images/portal_clientSpotlight_7_on.jpg";

seven0 = new Image(38,25);
seven0.src = "/images/portal_careers.jpg";
seven1 = new Image(38,25);
seven1.src = "/images/portal_careers_on.jpg";

eight0 = new Image(38,25);
eight0.src = "/images/bttn_submit.gif";
eight1 = new Image(38,25);
eight1.src = "/images/bttn_submit_on.gif";

}

function switchimage (imgname, target)
    {
    	if (netscape || goodIE) document.images[imgname].src = target.src;
    }