Regex Hash Router

route.html

<a href="#/hello">hello</a>
<br/>
<a href="#/bye">bye</a>

<script>
    route
       (/^\/hello$/, function(){ alert('hello ran'); })
       (/^\/bye$/, function(){ alert('bye ran'); })
    ;
</script>

route.js

(function(global){

    var routes = [];

    global.route = function(pattern, callback, context) {
      
        var key;
        var patternType = Object.prototype.toString.call(pattern);

        context = context || null;
          
        if (patternType === '[object String]') {
           pattern = new RegExp(pattern);
        }
                
        routes.push({ pattern: pattern, callback: callback, context: context });
        
        return route;
  
    };

    global.addEventListener('hashchange', function(e) {

        var hash = location.hash.replace('#', '');
        var len = routes.length;
        var item;
        var i;

        for (i = 0; i < len; i++) {
            item = routes[i];
            if (item.pattern.test(hash)) {
                item.callback.call(item.context);
            }
        }
        
    }, false);
    
})(window);