Identifiying multiple records for databse submission

I'm creating a resume database where I am having resumes submitted to this database and keyword searches done. All works. Now I need to have a way of tagging items found in the database much like a shopping cart. So, I have a unique ID created each time someone does a search on the page which is based on the time and date. Each time a search is done the old one is destroyed and a new ID created. Users will search the database and select resumes they think are suitable and tag them, before doing a new search they will submit the resumes (actually the IDs of the resumes) to a table. I'm wondering what is the best way to do something like this. Each resume needs to be tagged when a popup window of the resume is open. Any ideas? Thanks