field - Drupal v7 - Weight and Balance Calculator -


fairly new drupal v7 , new js -

i know possible do, not know start.

i want create webform/input community able calculate weight , balance small engine planes-aviation requirements.

example - not drupal - http://home.roadrunner.com/~trumpetb/alph/

i @ total lost upon start. far i've got computed field webform calculator , other supporting modules installed.

anybody out there have experience or tutorials point me to? thanks!


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