npc problem

[pikaz]

ok heres my problem:

I created a simple status bar, but i noticed if i was in the same level with somone else who had the same weapon it would be messed, so i made a test npc with this script:

showimg 8,@#s(client.hunger),20,200;
changeimgvis 8,4;

i ran it in a loop, now if anyone is in the same level as somone who has this npc it shows everyones stats in one jumbled mess(even if they don't have the weapon)

any ideas here?