Visual Basic 2010 WebBrowser Buttons Click

Hi all! I tried many times to write code but did not. Can you help me? I created a program with a button and a browser when I press the button it presses a button in the browser. The browser navigate this page: http://ask.fm/user5559/answer/109908424806 and the button in the program need to click the button in the browser for "like the question", the red heart button, you can see the pic. http://s28.postimg.org/4ebqxhs25/likea.png Please help me.

Don't work with WebBrowser1.Document.All("value").InvokeMember("click") ; the code must be with (for ; each) but it is difficult for me. Thanks:);)