Here are some of the string functions I have written. They can be used either client-side or server-side, although smartRmHTML would need the server.HTMLEncode method removed if it were used client-side. Enjoy!

function autoHTML( strSrc,optAtt ) {
 //-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 // autoHTML function
 // author: T. Kang
 // contact: txkang@hotmail.com
 // This function will make http,https,ftp,www and email strings clickable.
 //+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
 
 strSrc = strSrc.replace( /\s(https:\/\/|http:\/\/|ftp:\/\/|www.)([^\s]*)/gi,
   ' <a href=http://$2 ' + optAtt + '>$1$2</a>' );
 strSrc = strSrc.replace( /\s([^\s]*@[^\s]*)/gi,' <a href=mailto:$1>$1</a>' );
 return strSrc;
}