[GoldenLion]

Код:

if {dialogid == 81)

There's a curly bracket. Change it to

Код:

if (dialogid == 81)

Also use a switch statement instead of 9 if statements.

Код:

switch (listitem)
{
    case 0:
    {
         //code
    }
    case 1:
    {
         //code
    }
}

and the same thing for dialog ids. Have a look here: https://sampwiki.blast.hk/wiki/Control_Structures#switch