Invite all Friends to Like Your Facebook Fan Page 2014

1 ) Open your Facebook page, where you desired to invite your friends.
2 ) Now just navigate to Build Audience > Invite option.
3 ) Now, a dialog box will be appear with invite option with all your friends name.
4 ) Press F12 to open inspect element tab.
5) Go to the console tab and copy paste the following script.

var inputs = document.getElementsByClassName('uiButton _1sm');
for(var i=0; i<inputs.length;i++) {
inputs[i].click();
}