Connecting To Multiple MySQL Databases

I know this may be slightly off topic for a PHP listserv but I cant find my answer anywhere else. I start off generating a page connected to one database as a certain user and I call a script that requires a connection to a second database as a different user. Is there any way I could open that connection while maintaining the current one aswell? The connection of the script is opend and closed before any more of the other page is generated. Im not sure how to go about solving this problem other than rewriting my script. Any ideas? --nathan