just a link in php email

Hi All, I've been researching the mail() function and from what I've read, some people embed HTML into their mail() without using classes. All I need to do is add a link in an email... can anyone advise how I would do this? Which headers would I need? I was using: $headers = "MIME-Version: 1.0\r\n"; $headers .= "Content-type: text/html; charset=iso-8859-1\r\n"; but getting a wrong parameter count for mail. How do I add more than one? Then how do I code the link in the $mailcontent? I was using single quotes for the anchor tags, is that correct? Not sure if that works since my headers weren't working. Thanks for your help w/ a novice, ~AC