Health System

[Knightmare1]

im creating a health system for my server, and i was wondering, how do you make sure that when you damage a player that you can tell you killed them. this is what i have so far. I only spent a couple of minutes, and i was wondering, can anyone help me? i am not to good at scripting. and the server is gonna have a ranking system ( like ranks for each class. ) and class system. im still working on everything, because i have no staff xD

PHP Code:

function onActionServerSide() 
{ 
 if (params[0] == "hurt") 
 { 
  clientr.hp -= clientr.weapon_damage;
 } 
 elseif (params[0] == "dead")
 {
  clientr.hp = 0;
  clientr.deaths += 1;
 }
 elseif (params[0] == "kill")
 {
  clientr.kills_@clientr.weapon += 1;
  clientr.exp += 4;
  clientr.message = "You have killed " @temp.player_hit;
 }
 elseif (params[0] == "revive")
 {
  clientr.hp = clientr.hp_max;
  setlevel2("final_osl.nw", 30, 30);
 }
}

//#CLIENTSIDE
function onCreated()
{
 clientr.hp = 100;
 clientr.hp_max = 100;
 clientr.deaths = 0;
 clientr.kills = 0;
 setTimer( 0.05 );
}