带有phonegap的jQM移动应用程序中的$ .Ajax无法在iOS设备上运行

I have a login button in a jQuery Mobile application. When the login button is pressed a soap service is getting called using $.ajax() method. This works on browser and android phones but the control does not even go inside the $.ajax() in iOS devices. Here is my sample code.I have a login button in a jQuery Mobile applic