Adding <p> into a database entry

hey all

say i have a database set up with cms to add say a news item to a website.

i have a simle form with a textfield to enter the news.

if someone types ;

line one
line 2

line 4

etc it shows up all in one line. i know i can just add <br> into the text but is there an easier way for people adding news that may not usnderstand the <br> and how to use it?? maby some JS button to press that adds “new paragraph” and then enters in the <br>

sure there is a simple explination here, just not thinking straight right now!!