在没有网络可用且Android上禁用wifi时处理ajax请求

I am developing an Android Application using phonegap. Everything is working fine as request/response, now I have to handle the situation when no 3G network is available and wifi is disabled, in this case my jquery ajax() request does not do anything it does not come to error handler even. I have put the timeout of 10seconds.I am developing an Android Application using ph