Here you go:
Request URL:http://www.portal-gestao.com/budget/incluir/json4.php
Request Method:POST
Status Code:200 OK
Request Headersview source
Accept:application/json, text/javascript, */*; q=0.01
Accept-Encoding:gzip,deflate,sdch
Accept-Language:pt-PT,pt;q=0.8,en-US;q=0.6,en;q=0.4,pt-BR;q=0.2
Connection:keep-alive
Content-Length:113
Content-Type:application/x-www-form-urlencoded; charset=UTF-8
Cookie:visitas=5; 0cf3259c57baa4009afba854fca3d67b=dc32f988297cb3c57189ccbcd67c7069; 7a36e8ff9b36e11bfd780a779aebf1f2=4C401412+746+B+3+E55165F145F465B5C165E161413165140104F+94A5746+D1538283B2B74272E225D1618; __zlcmid=NEdVg2JezRIIXT; PHPSESSID=a81316b001465431cab6d3b8a15d118f; __utma=187962025.258322195.1391294013.1391443144.1391507878.8; __utmc=187962025; __utmz=187962025.1391426436.5.2.utmcsr=facebook.com|utmccn=(referral)|utmcmd=referral|utmcct=/; __unam=c61f6f0-143efb22cd0-e2b74ec-8; user_key=1
Host:www.portal-gestao.com
Origin:http://www.portal-gestao.com
Referer:http://www.portal-gestao.com/youbudgetz.html
User-Agent:Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.72 Safari/537.36
X-Requested-With:XMLHttpRequest
Form Dataview sourceview URL encoded
addList:[{"orcamento":0,"atual":0,"desvio":"","data":"11-02-2014"}]
Response Headersview source
Cache-Control:max-age=0, no-cache, no-store
Connection:close
Content-Encoding:gzip
Content-Length:30
Content-Type:text/html
Date:Tue, 04 Feb 2014 13:57:47 GMT
Server:Apache/2.2.24 (Unix) mod_ssl/2.2.24 OpenSSL/1.0.0-fips mod_auth_passthrough/2.1 mod_bwlimited/1.4 FrontPage/5.0.2.2635 mod_fcgid/2.3.6
Vary:Accept-Encoding
X-Mod-Pagespeed:0.9.17.7-716
X-Powered-By:PHP/5.3.24