ir detector cards hi people ok heres my problem i keep hearing about these little credit card type of things which detect ir light i believe that you have to charge them up under normal visible light and then if they are exposed to ir light they glow or something like that i think that they are avaliable in the states and even in england but alas i live in australia could someone please inform me if i can get these things over here and if so where and how much also are they really commonly avaliable in the states and if so then how much are they and who sells them maybe if i cant get one here i ll write to one of the companies over seas anyway thanks in advance sab
