var urlstring,strOutput,myname,dearname 
 urlstring=top.location.search 
 myname="" 
 dearname="" 

 if (urlstring.indexOf("f=") > 0) 
 { 
 myname=urlstring.substring((urlstring.indexOf("f="))+2,urlstring.length) 
 } 

 else 
 { 
 myname= "Friend"; 
 dearname="Dear "+myname+"" 
 } 

 if (myname.length>0) 
 { 
 dearname="Dear "+myname 
 }