JAVASCRIPT

How to make a JSON call to an URL

function getJSONP(url, success) {

    var ud = '_' + +new Date,
        script = document.createElement('script'),
        head = document.getElementsByTagName('head')[0] 
               || document.documentElement;

    window[ud] = function(data) {
        head.removeChild(script);
        success && success(data);
    };

    script.src = url.replace('callback=?', 'callback=' + ud);
    head.appendChild(script);

}

getJSONP('http://soundcloud.com/oembed?url=http%3A//soundcloud.com/forss/flickermood&format=js&callback=?', function(data){
    console.log(data);
});  

How to make a json call to a URL

function getJSON(url, success) {
  var ud = '_' + +new Date,
      script = document.createElement('script'),
      head = document.getElementsByTagName('head')[0] || document.documentElement;

  window[ud] = function(data) {
      head.removeChild(script);
      success && success(data);
  };

  script.src = url.replace('callback=?', 'callback=' + ud);
  head.appendChild(script);
}

getJSON('http://soundcloud.com/oembed?url=http%3A//soundcloud.com/forss/flickermood&format=js&callback=?', function(data){
  console.log(data);
});