Serializing an object to JSON
Download https://github.com/douglascrockford/JSON-js/blob/master/json2.js, include it and do
var json_data = JSON.stringify(obj);
Just to keep it backward compatible I load Crockfords JSON-library from cloudflare CDN if no native JSON support is given (for simplicity using jQuery):
function winHasJSON(){ json_data = JSON.stringify(obj); // ... (do stuff with json_data)}if(typeof JSON === 'object' && typeof JSON.stringify === 'function'){ winHasJSON();} else { $.getScript('//cdnjs.cloudflare.com/ajax/libs/json2/20121008/json2.min.js', winHasJSON)}