Simple Java project

Hi Developers, I need some help with a simple problem. I need a Java expert to solve this problem for me. All I need is a web page with a hidden applet and a html button. The applet should use one signed jar file. Whenever the user clicks the html button, a method in the applet should detect the 'windows' in Windows 7, then it should display the windows title and all should work in coordination with HTML. I am having the JNA W32API code which detects the windows working as an applet. I am making some mistakes so kindly please help me. I will provide the resources only to someone who impresses me with qualitative work and not by words. My budget is only 100USD so bid accordingly. Thanks and All the Best