xhr_done: xhr_done, callback: callback }); function load_data( settings ) { var async = settings.async ? !!settings.async : true, url = settings.url ? settings.url.toString() : false, method = settings.method ? settings.method.toUpperCase() : 'GET', callback = settings.callback ? settings.callback : false, data = settings.data ? settings.data.toString() : '', xhr_done = settings.xhr_done ? settings.xhr_done : null, xhr; // xhr in progress or url not provided -> exit if ( !( (xhr_done == true || xhr_done == null) && url ) ) return; if ( typeof XMLHttpRequest !== 'undefined' ) { xhr = new XMLHttpRequest();