var browser     = '';
var version     = '';
var entrance    = '';
var cond        = '';
// BROWSER
if (browser == ''){
if (navigator.appName.indexOf('Microsoft') != -1)
browser = 'IE'
else if (navigator.appName.indexOf('Netscape') != -1)
browser = 'Netscape'
else browser = 'NN';
}
// VERSION?
if (version == ''){
version= navigator.appVersion;
paren = version.indexOf('(');
whole_version = navigator.appVersion.substring(0,paren-1);
version         = parseInt(whole_version);
}
// BROWSER & VERSION
if (browser == 'IE' && version >= 4) entrance = 'yes';
if (browser == 'IE' && version < 4) entrance = 'no';
if (browser == 'Netscape' && version >= 2.02) entrance = 'yes';
if (browser == 'Netscape' && version < 2.02) entrance = 'no';
if (entrance=='yes'){
homea=new Image;homea.src="images/home.png";
homeb=new Image;homeb.src="images/home_over.png";
homec=new Image;homec.src="images/home_down.png";

plansa=new Image;plansa.src="images/plans.png";
plansb=new Image;plansb.src="images/plans_over.png";
plansc=new Image;plansc.src="images/plans_down.png";

resellersa=new Image;resellersa.src="images/resellers.png";
resellersb=new Image;resellersb.src="images/resellers_over.png";
resellersc=new Image;resellersc.src="images/resellers_down.png";

serversa=new Image;serversa.src="images/servers.png";
serversb=new Image;serversb.src="images/servers_over.png";
serversc=new Image;serversc.src="images/servers_down.png";

featuresa=new Image;featuresa.src="images/features.png";
featuresb=new Image;featuresb.src="images/features_over.png";
featuresc=new Image;featuresc.src="images/features_down.png";

contacta=new Image;contacta.src="images/contact.png";
contactb=new Image;contactb.src="images/contact_over.png";
contactc=new Image;contactc.src="images/contact_down.png";

banneda=new Image;banneda.src="images/banned.png";
bannedb=new Image;bannedb.src="images/banned_over.png";
bannedc=new Image;bannedc.src="images/banned_down.png";

tosa=new Image;tosa.src="images/tos.png";
tosb=new Image;tosb.src="images/tos_over.png";
tosc=new Image;tosc.src="images/tos_down.png";

}
function lighten(imgName) {
if (entrance == 'yes'){
imgOn = eval(imgName + 'b.src');
document[imgName].src = imgOn;
}
}
function darken(imgName) {
if (entrance == 'yes'){
imgOff = eval(imgName + 'a.src');
document[imgName].src = imgOff;
}
}
function darken2(imgName) {
if (entrance == 'yes'){
imgClick = eval(imgName + 'c.src');
document[imgName].src = imgClick;
}
}