// output format: 12 Jul, 2014 at 10:51 am

​

var d = new Date();

var my_date_format = function(input){

  var d = new Date(Date.parse(input.replace(/-/g, "/")));

  var month = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

​

  var date = d.getDay().toString() + " " + month[d.getMonth().toString()] + ", " +    d.getFullYear().toString();

  var time = d.toLocaleTimeString().toLowerCase().replace(/([\d]+:[\d]+):[\d]+(\s\w+)/g, "$1$2");

  return (date + " " + time);  

​

};

​

console.log(my_date_format("2014-07-12 11:28:13"));