core_js_28.js

var each = function(arr, callback) {
     for(i = 0; i < arr.length; i++) {
          callback(i, arr[i]);
     }
};

onload=function() {
    var test = [ { name : 'a' }, { name : 'b' }, { name : 'c' } ];

     each(test, function(index, elem) {
          alert(index + " = " + elem.name);
     });
}