White hair dye?? where can i get it??

I wouldn't advise doing it at home. There's no "white hair dye," you have to go platinum blonde and then use a toner. Neither of those things should be done by an amateur, nor should it be done all at once (you should gradually go platinum, as it will be less damaging). If you go to a salon, tell them what you want, they should know what to do. Avoid the cheap salons, as they either won't know what you're talking about, or they will attempt it and likely ruin your hair in the process. The bleaching/toning itself will be damaging enough, you want to be sure the stylist handling your hair knows what they're doing.

White hair dye?? where can i get it??

I've never heard of a kit to dye your hair white, but there are ways to do it:

First, buy the strongest bleach you can. I recommend going to a beauty supply store and getting high-lift powdered bleach and at least a 40 volume developer.

With it, bleach your hair as light as possible and then tone with a purple-hued toner.

Manic Panic makes one called "Virgin Snow" which basically looks kind of milky/violet. If memory serves, Special Effects also makes a white hair color. You can usually get this at alternative stores (Hot Topic, for example) and sometimes at beauty supply stores. It is also sold online.

Apply the Manic Panic (or whatever product you get) to your hair, leave it on as long as you can (I also sometimes blowdry my hair with it in, so it really saturates your hair shaft) and wash out until the water runs clear.

Good luck!