auto-filling form field from url

auto-filling form field from url

hi, guys!

how can i make creator's form so that 
1) there will be a number of hidden fields and a number of seen fields? as seen - phone field, for example
2) hidden fields auto-filled from url string

url example -  Google Adwords URL

http://www.okdekor.ru/?url={lpurl}&adwnetwork={network}&adwplacement={placement}&adwadposition={adposition}&adwcreative={creative}&adwmatchtype={matchtype}&adwkeyword={keyword}&adwdevice={device}

hidden field with name "adwnetwork" - auto-filled with content of "{network}" and so on

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hidden field list:
  • utm_campaign     
  • utm_content     
  • utm_term     
  • utm_source     
  • utm_medium     
  • yatype     
  • yasource     
  • yaadded     
  • yablock     
  • yapos     
  • yakey     
  • yacampaign     
  • yaad     
  • yaphrase     
  • adwadposition     
  • adwcreative     
  • adwdevice     
  • adwkeyword     
  • adwmatchtype     
  • adwnetwork     
  • adwplacement