Problems with user's newlines

Hello, I am using Php3, JavaScript, and mysql on my site. I have a textbox that users can fill in; this is stored in a database. Later, this information will be redisplayed in a web page. The way the webpage is generated is by using php to generate javascript which generates html. It works fine unless the user puts in a newline. Then javascript complains that the lines are not terminated. But I have been trying to do ereg_replace on the strings: $string = ereg_replace("\n","<BR>",$string); I'm getting the <BR>'s, but still the newlines seem to be there. I tried matching on "\\\n" and got the same result. Does anyone have any ideas why this match is not working? Thanks, Kris L.