simple javascript search function

I need a simple javascript function to be included in a web page. The function will look in a big table of about 100,000 entrie for SKU code and manufacturer) and will show result in the page (max 10 first result) the user will be able to enter a number within a result line and post the form to tell the page the number and sku number to be recorded. the 100,000 line of (manufacturer_id, sku,description, status, qty/box, price) data will need to be uploaded on user computer. and it should not change more then 3-4 time a year so maybe just check on the website if the file have changed first before downloading it. I am about sure someone have done somthing similar like [login to view URL] and that it will be an easy job to create that .js file. you can define the format of the dataset. it is currently in an excel spreadsheet.