|Spilling liquid on a laptop is one of the two most frequent reasons that a laptop is damaged such that something cannot be fixed - the other is dropping the laptop, or otherwise subjecting it to physical abuse. |
The first thing you should do after spilling liquid on it is to STOP USING IT !
You should remove the main battery and the AC adapter's connection immediately, remove the liquid from what you can get at from the outside including the keyboard, and either you or a laptop repair place should open up the laptop and clean up any liquid that got inside of it, in order to minimize damage that has been done / could be done if you continued to use it with the liquid or dried deposits from the liquid present.
Laptop repair places frequently clean up and analyze what is wrong with laptops that have had liquid spilled on them. If you don't want to do that yourself, take the laptop to a repair place and get an estimate of what it would cost to fix it.
If you want to try doing that yourself, look on the Toshiba web site to see if there is a free Service or Maintenance manual for your model or model series available, and download it. If that's not there, search on the web for one - they are often available free or for a small fee.
AFTER the liquid has been removed, THEN you (or the laptop repair place) can determine what works and what doesn't, and go from there. Replacement keyboards are easy to get on the web and relatively inexpensive, if that's all that's wrong, but you need to determine the specific part number you need - that's often on a label on the underside of the keyboard - you have to at least loosen the keyboard to find that. .