ActionScript 3 sort an array with numbers and letters not working as expected -

i'm trying sort users cards in card game, example user's aces stand close each other. i'm using this:

p1cards array elements "c8", "d9", "h1", letters stand card symbol (club, diamond, hearts) , number card value (1 ace, 2 2, , on)

p1cards.sort(sortorder);      function sortorder(a,b)     {         var = parseint(a.substr(1));         var bn = parseint(b.substr(1));          if (an > bn)         {             return 1;         }         else         {             return -1;         }     } 

the problem sorted card 8d, 8c switching places 8c, 8d, kind of randomly, when draw new card.

any apreciated.

see in picture below:

http://i.stack.imgur.com/2ticj.jpg

you don't define in sort when values same, depending item gets slotted in a , b (which have no control over) determine order. tell sort function when items same:

function sortorder(a,b) {     var = parseint(a.substr(1));     var bn = parseint(b.substr(1));      if(an == bn){          //they same, add secondary sort based off suit          var = a.substr(0,1); //grab first character suit          var bs = b.substr(0,1);           if(as > bs) return 1;          if(bs > as) return -1;          return 0;     }      if (an > bn)     {         return 1;     }     else     {         return -1;     } }