DOM-based Routinghttp://www.paulirish.com/2009/markup-based-unobtrusive-comprehensive-dom-ready-execution/

dom-based-routing.js

var UTIL = {

    fire : function(func,funcname, args){

    var namespace = SCRIPTS;  // indicate your obj literal namespace here

    funcname = (funcname === undefined) ? 'init' : funcname;
    if (func !== '' && namespace[func] && typeof namespace[func][funcname] == 'function'){
      namespace[func][funcname](args);
    }

  },

  loadEvents : function(){

    var bodyId = document.body.id;

    // hit up common first.
    UTIL.fire('common');

    // do all the classes too.
    $.each(document.body.className.split(/\s+/),function(i,classnm){
      UTIL.fire(classnm);
      UTIL.fire(classnm,bodyId);
    });

    UTIL.fire('common','finalize');

  }

};

// kick it all off here 
$(document).ready(UTIL.loadEvents);

routing-scripts.js

var SCRIPTS = {
  common : {
    init     : function(){ ... },
    finalize : function(){ ... }
  },
  shopping : {
    init     : function(){ ... },
    cart     : function(){ ... },
    category : function(){ ... }
  }
};