Cant Run Android application on eclipse : i have problem with eclipse and i hope to help me to solve it !!

so, my problem is i cant run my android appliction on eclipse 
when i click run it show to me this form and dont have android application choise !
this is a screenshot 
 [picture][1]

  [1]: http://i.stack.imgur.com/exEmo.png
so, any idea to solve this problem ????
Hello ! i have problem with eclipse and i hope to help me to solve it !!

so, my problem is i cant run my android appliction on eclipse 
when i click run it show to me this form and dont have android application choise !
this is a screenshot 
 [picture][1]

  [1]: http://i.stack.imgur.com/exEmo.png
so, any idea to solve this problem ????