function insertContact (fname,lname) {
   var charAt = '@'
   var showTo = fname;

   if (lname) {
      showTo += '.' + lname;
   }

   var showDom = 'gmail.com';
   
   var showHTML = '<a href="' + 'ma';
   showHTML += 'ilt' + 'o:' + showTo;
   showHTML += charAt + showDom + '">';
   showHTML += 'Rick Mannor' + '</a>'; 
    
   document.write (showHTML); 
}