<blank> years of service

[Krytic]

Or:

<setvar years>floor((TIME_NOW-$post['regdate'])/(60*60*24*365))</setvar>
<span class="service-{$GLOBALS['tplvars']['years']}">{$GLOBALS['tplvars']['years']} years of service</span>

(The number will be an integer, ie 1, 2, 3, instead of one, two, three)

Then, in global.css, stuff like this works:

.service-1 {
color: pink;
}

.service-2 {
color: yellow;
}

.service-3 {
color: red;
}

.service-4 {
color: orange;
}

et cetera, where the number is the number of years of service.