[MattyG]

Just add an array at the top of your script, like this:

pawn Code:

new votes[NUMBER_OF_MAPS_HERE];

then under where someone votes:

pawn Code:

votes[MAP_NUMBER_HERE]++;

and then do something like this to find the highest voted map:

pawn Code:

new numvotes, winner;
for(i=0;i<NUMBER_OF_MAPS_HERE;i++)
{
    if(votes[i] > numvotes)
    {
        winner = i;
    }
}

and then the winner is votes[winner]