-   script  quest_restriction   -1,{
 
OnLoadMapEvent:
 
    if(" questvariable here " < 1) { 
    dispbottom "Map Restriction : we identify that you are not allowed to enter this map.";
    warp "SavePoint",0,0;
    end;
    } else {
    dispbottom "Okay you are allowed to stay in this map";
    end;
    }
}