Pre-loading a table, populating data

hopefully someone has already crossed this bridge,

does anyone know how to pre-load a table and then populate the data returned from a query? I have seen websites like ingrammicro.com that display the results from a search where you can see the table and some of the data , and then slowly you start seeing pricing populated within the table. maybe this is more of an HTML question.not sure. thanks for any information you can give.

thanks, Tim