function heal($id) {
    
    global $userrow, $spells;
    
    $failed = 0;
    if ($userrow["currentmp"] < $spells[$id]["mp"]) { $return = "<span class=\"red\"><b>Failed to cast spell:</b> not enough MP!</span><br />"; $failed = 1; }
    
    if ($failed == 0) { 
        $userrow["currenthp"] += $spells[$id]["value"];
        $userrow["currentmp"] -= $spells[$id]["mp"];
        if ($userrow["currenthp"] > $userrow["maxhp"]) { $userrow["currenthp"] = $userrow["maxhp"]; }
		$return = $userrow["charname"] . " casts " . $spells[$id]["name"] . " and gains " . $spells[$id]["value"] . " HP.<br />";
    }
	
	
    
    return($return);
    
}

} elseif (isset($_POST["spell"])) {
    
        if (! is_numeric($_POST["spellid"])) { err("Wrong input."); }
        $isavailable = 0;
        for ($i = 1; $i < 11; $i++) {
            if ($userrow["spell".$i."id"] == $_POST["spellid"]) { $isavailable = 1; }
        }
        if ($isavailable == 0) { err("You don't have that spell!"); }
        
        include("spells.php");
        $castspell = $spells[$_POST["spellid"]]["fname"]($_POST["spellid"]);
        $userrow["currentmonsterhp"] -= ($fightrow["playerphysdamage"] + $fightrow["playermagicdamage"] + $fightrow["playerfiredamage"] + $fightrow["playerlightdamage"]);
        if ($userrow["currentmonsterhp"] <= 0) { youwin(); }
        monsterturn();
        if ($userrow["currenthp"] <= 0) { youlose(); }
        updateuserrow();
        
        $pagerow = array(
            "message"=>$castspell,
            "monstername"=>$monsterrow["name"],
            "monsterhp"=>$userrow["currentmonsterhp"],
            "playerphysdamage"=>$fightrow["playerphysdamage"],
            "playermagicdamage"=>$fightrow["playermagicdamage"],
            "playerfiredamage"=>$fightrow["playerfiredamage"],
            "playerlightdamage"=>$fightrow["playerlightdamage"],
            "monsterphysdamage"=>$fightrow["monsterphysdamage"],
            "monstermagicdamage"=>$fightrow["monstermagicdamage"],
            "monsterfiredamage"=>$fightrow["monsterfiredamage"],
            "monsterlightdamage"=>$fightrow["monsterlightdamage"],
            "track"=>$fightrow["track"]);
        $pagerow["spells"] = dospellslist();
        display("Fighting",parsetemplate(gettemplate("fight_turn"),$pagerow));