[removed] Ordinal suffix for numbers with specific CSS class

Question

I am trying to display numbers within a particular table with ordinal suffixes. The table always shows three numbers which come from an XML file. The numbers show ranks, so for

Answer 1

function nth(n){
    if(isNaN(n) || n%1) return n;   
    var s= n%100;
    if(s>3 && s<21) return n+'th';
    switch(s%10){
        case 1: return n+'st';
        case 2: return n+'nd';
        case 3: return n+'rd';
        default: return n+'th';
    }
}

You can take care of the teens in their own line, other integers follow the last digit rules.