URL link in email

I have a small problem that is starting to bug me now.  I am trying to send out an automated email to clients and in that email put a link back to the site but whenever i click on the link it takes me to the local host pages.  This is the code i have:-

  
                                                   "<a> href='http://'www.thenurseryjobsite.com>Login</a> to theNurseryJobSite";
                    "From: thenurseryjobsite.com";
$headers =           "From: thenurseryjobsite.com<enquiries@thenurseryjobsite.com>\r\n" .
                              

Any ideas - i know i am probably doing something really stupid but have spent ages changing things around.