I don't know what I am doing. Table help and Nil values.

[BlackMadd]

So im trying to set up my hud EXACTLY to my liking but alas while the code works in my head, it does not work on paper...

What i am trying to do is set up a HUD element that tells you what your current weapon is and if you are NOT holding a weapon then to return nothing (Without errors)
Also, i am trying to make a table that contains the names of the possible weapon_* choices any regular person can have on my server, then display the weapon name in text as i want it to be. However the table i have written returns errors, and I am unsure as how to utilize my table even if it didn't give me errors.

As for my " if WEAP:IsValid() then" this also returns errors. **See bottom of post for error messages.

Here is my code as i have it. This code does not work and returns errors.

-----------Weapons Table----------------
myweapons={} 
weapon_crowbar[1]="Crowbar" 
weapon_fists[2]="Fists" 
weapon_pistol[3]="Pistol" 
weapon_357[4]="357"
weapon_smg1[5]="SMG"
weapon_ar2[6]="Pulse Rifle"
weapon_shotgun[7]="Shotgun"
weapon_crossbow[8]="Crossbow"
weapon_frag[9]="Grenade"
weapon_rpg[10]="RPG"
weapon_slam[11]="Slam"
-----------------------------------------

    surface.CreateFont("s1", { --s1 becomes the custom name of font
    size = 25,
    weight = 700,
    antialias = true,
    shadow = false,
    font = "ScoreboardText"})

    local WEAP = LocalPlayer():GetActiveWeapon():GetClass()

    surface.SetTextColor( 255, 255, 255, 255)
    surface.SetTextPos( 10, 80 )
    surface.SetFont( "s1" )
 if WEAP:IsValid() then
    surface.DrawText( "Weapon: "..WEAP)
 else
    surface.DrawText( "Weapon: None")
end
end

EDIT: The Errors are

[ERROR] gamemodes/gxm/gamemode/cl_init.lua:10: attempt to index global 'weapon_crowbar' (a nil value)
1. unknown - gamemodes/gxm/gamemode/cl_init.lua:10

[ERROR] gamemodes/gxm/gamemode/cl_init.lua:96: Tried to use a NULL entity!
1. GetClass - [C]:-1
2. unknown - gamemodes/gxm/gamemode/cl_init.lua:96

[arcaneex]

Doesn't work that way.
Instead of weapon_rpg and so on you need to do myweapons[number]

[Rubat]

-----------Weapons Table----------------
local myweapons = {} 
myweapons["weapon_crowbar"]="Crowbar" 
myweapons["weapon_fists"]="Fists" 
myweapons["weapon_pistol"]="Pistol" 
myweapons["weapon_357"]="357"
myweapons["weapon_smg1"]="SMG"
myweapons["weapon_ar2"]="Pulse Rifle"
myweapons["weapon_shotgun"]="Shotgun"
myweapons["weapon_crossbow"]="Crossbow"
myweapons["weapon_frag"]="Grenade"
myweapons["weapon_rpg"]="RPG"
myweapons["weapon_slam"]="Slam"
-----------------------------------------

    surface.CreateFont("s1", { --s1 becomes the custom name of font
    size = 25,
    weight = 700,
    antialias = true,
    shadow = false,
    font = "ScoreboardText"})

    local WEAP = LocalPlayer():GetActiveWeapon()

    surface.SetTextColor( 255, 255, 255, 255)
    surface.SetTextPos( 10, 80 )
    surface.SetFont( "s1" )
 if WEAP:IsValid() then
    surface.DrawText( "Weapon: "..myweapons[ WEAP:GetClass() ] )
 else
    surface.DrawText( "Weapon: None")
end
end

[BlackMadd]

[QUOTE=Robotboy655;42827273]

-----------Weapons Table----------------
local myweapons = {} 
myweapons["weapon_crowbar"]="Crowbar" 
myweapons["weapon_fists"]="Fists" 
myweapons["weapon_pistol"]="Pistol" 
myweapons["weapon_357"]="357"
myweapons["weapon_smg1"]="SMG"
myweapons["weapon_ar2"]="Pulse Rifle"
myweapons["weapon_shotgun"]="Shotgun"
myweapons["weapon_crossbow"]="Crossbow"
myweapons["weapon_frag"]="Grenade"
myweapons["weapon_rpg"]="RPG"
myweapons["weapon_slam"]="Slam"
-----------------------------------------

    surface.CreateFont("s1", { --s1 becomes the custom name of font
    size = 25,
    weight = 700,
    antialias = true,
    shadow = false,
    font = "ScoreboardText"})

    local WEAP = LocalPlayer():GetActiveWeapon()

    surface.SetTextColor( 255, 255, 255, 255)
    surface.SetTextPos( 10, 80 )
    surface.SetFont( "s1" )
 if WEAP:IsValid() then
    surface.DrawText( "Weapon: "..myweapons[ WEAP:GetClass() ] )
 else
    surface.DrawText( "Weapon: None")
end
end

[/QUOTE]

I er uh... what? Thanks i guess. But id rather someone explain what was wrong so i would actually learn from it instead of just a c+p. But from your modified code i can learn a little. Thanks!