How to add share button to facebook

http://www.facebook.com/sharer.php?s=100&p[title]=YourPostSubject&p[summary]=YourPostSummary&p[images[0]=YourImgURL&p[url]=YourURL

http://www.facebook.com/sharer.php?s=100&p[Circuit Breakers]=YourPostSubject&p[Circuit breaker resources]=YourPostSummary&p[images[0]=YourImgURL&p[http://waterheatertimer.org/images/Square-D-in-subpanel-2-029.jpg]=http://waterheatertimer.org/Circuit-breakers.html

Current URL
https://www.facebook.com/sharer/sharer.php?u=http%3A%2F%2Fwaterheatertimer.org/Circuit-breakers.html

javascript:newPopup(' http://www.facebook.com/sharer.php?s=100&p[Circuit Breakers]=YourPostSubject&p[Circuit breaker resources]=YourPostSummary&p[images[0]=YourImgURL&p[http://waterheatertimer.org/images/Square-D-in-subpanel-2-029.jpg]=http://waterheatertimer.org/Circuit-breakers.html');
http://waterheatertimer.org/facebook-image.html

http://stackoverflow.com/questions/19920488/how-to-prevent-facebook-from-pulling-random-images-from-your-site-when-you-share

<meta property="og:image" content="http://webgilde.com/en/wp-content/uploads/2013/10/wrong-facebook-image.png"/>