Marking in dialog

Hi guys,



I need simple help, I am about to create some missions, that missions will be enabled by writing command /ms and the thing is, that it will show an dialog, where it will be just like this, it will be Dialog Style List



If player writes command /ms



The dialog will show up: Missions

Line 1 for example Stole his wife



so.. Stole his wife will be the name of mission witch will be showed in dialog on the first place.



And, my problem is.. If the player complete the mission, so he will get mission done for example:

Code:

---

if(Mision[playerid] == 1)

---

the thing is, i need to set the text in dialog by command /ms to

Line 1 will be (after the mission is done) Stole his wife (COMPLETED)



and the player, will be not enable to enter the mission, so if the tryes to enter, the server will respond him for example

You've already done this mission!



For any possible help I am thankful!