SendClientMessageToAll(playerid,COLOR_WHITE,"Remember to read the /rules!");
    SendClientMessageToAll(playerid,COLOR_WHITE,"Write /help for informations and more!");
    SendClientMessageToAll(playerid,COLOR_WHITE,"don't know if there any admins online? write /admins for admins");
    SendClientMessageToAll(playerid,COLOR_WHITE,"Looking for a job? write /jobs for empty jobs!");

#include < a_samp >

#define MESSAGE_MINUTES 1 // Show the message every 1 minute.

public OnFilterScriptInit( ) return SetTimer( "Rmsg", MESSAGE_MINUTES * 60000, 1 );

forward Rmsg( );
public Rmsg( ) 
{
    SendClientMessageToAll( COLOR, "Message1" );
    SendClientMessageToAll( COLOR, "Message2" );
    SendClientMessageToAll( COLOR, "Message3" );
    // And so on...
    return 1;
}