adding post to social sites

[SoniaTel]

I have added these social images in every left bottom corner of each post by adding the code in postbit_ligacy ...

how can i code each image as the default social bookmark button do ... [submit thread to dig] etc.



when i use this code for dig : http://digg.com/submit?phase=2&url={URL}&title={TITLE}

and smillar way to other buttons also it does not work