Climbing nets - interactive price calculation

Here you can calculate a price of a climbing net of your defined size and material    
on the basic of your following values specification before you order the
climbing net. The calculation can be repeated several times with different
values and then serves for your decision. You will type in:
   - net shape   (select from a list for example: rings on the top)
   - width x height of a net   (type in one decimal place, for example 1.5; 2,0 )                      Back
   - required mesh size  (select from a list of choices, for example 20 cm) 
   - rope material and a diameter  (select from a list of choices, for example PAD 12 mm) 
  Net shape                                             

  Mesh size                                               

  Rope material and a diameter of a net 

  Width  x Height  of a net / m