<% SkinMgr.prototypechooser %>
renders a dropdown containing available prototypes

Sourcecode in SkinMgr/macros.js:
1:   function prototypechooser_macro(param) {
2:      var options = [];
3:      for (var i in app.skinfiles)
4:         options.push({value: i, display: i});
5:      options.sort(function(a, b) {return a.display.charCodeAt(0) - b.display.charCodeAt(0); });
6:      Html.dropDown({name: "prototype"}, options, null, param.firstOption);
7:      return;
8:   }