replace string /empty space in xslt 1

Hi all,
I need you assistance. I have a system in xslt 1. my problem is that the xml
I get from another system , contain '/n' , the html result wouldn't break
the line.
I want to replace the '/n' with <br> symbol. I search the net and find only
replace string that doesn't work in xslt 1.
Will be happy to learn from your experience
Thanks