Facebook Login not open in Safari/ iPhone

Question

I am creating one application which show Facebook friend. First, user need to click on login button then one simple popup screen will appear after filling login id and passw

Answer 1

Ok... After wasting my full day i got a answer. Using Javascript_Facebook Sdk, when you click on Login button, it will open popup window. And in Safari or iPhone(mine), i enable Block-popup option.
Therefore i am not able to see Facebook login window. you need to allow pop-up window.
You can allow pop-up by clicking on

Safari-disable Block pop-up windows  

or

 safari-preference-then disable checkbox of pop-up window's    

or You can use a keyboard shortcut:

shift-[command key]-K.

cheers.