How to implement “select all” check box in HTML?

Question

I have an HTML page with multiple checkboxes.

I need one more checkbox by the name \"select all\". When I select this checkbox all checkboxes in the HTML page must b

Answer 1

Demo http://jsfiddle.net/H37cb/

 

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 Sub Title 01
     
 Sub Title 02
     
 Sub Title 03
     
 Sub Title 04
    
   
  
  

   
 Title 02
    

     
 Sub Title 05
     
 Sub Title 06
     
 Sub Title 07