Insert HTML line breaks in jQuery?
function submit_post(){
var post = $('#textarea').val();
$.('post', { post: post }, function(result){
//if PHP returns an error do something
else{
$('#divname').prepend(result);
}

//PHP processes the user's post
$post = nl2br(stripslashes($post));
//print html formats the post
echo $post;
//html ends

while(string.search("n")) {
    string.replace("n", "<br>");
}