user's Guide

  
              .
               .  
 
  .
   
.
     .    
.
                   
.
              
 .
   
    .
       .    
.
                   
 .
               
 .
    
                  
 .
   
        .
:    
   .
 Gmail
.

  .
.    .
. Google      .
.   Gmail     Gmail.
 
        .
:   Google         
.
               .
   