function ab_nature(){
window.open("popups/about_nature.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function ab_dune(){
window.open("popups/about_dune.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function trail_drive(){
window.open("popups/trail_drive.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function e_bohlen(){
window.open("popups/e_bohlen.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function follow(){
window.open("popups/drive_follow.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function span(){
window.open("popups/drive_span.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function work(){
window.open("popups/drive_work.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function pad(){
window.open("popups/pad.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function day(){
window.open("popups/camp_day.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function moon(){
window.open("popups/camp_moon.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function night(){
window.open("popups/camp_night.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function tent(){
window.open("popups/camp_tent.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function hyena(){
window.open("popups/hyena.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function jackal(){
window.open("popups/jackal.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function seal(){
window.open("popups/seal.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function rship(){
window.open("popups/relic_ship.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function rsiv(){
window.open("popups/relic_siv.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function rtrip(){
window.open("popups/relic_trip.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function rdrive(){
window.open("popups/relic_drive.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function map(){
window.open("popups/map.htm", "null", "height=475, width=630, scrollbars=no, top=30, left=30")
  }

function schedule(){
window.open("popups/schedule.htm", "null", "height=485, width=660, scrollbars=no, top=30, left=30")
  }

function birds(){
window.open("popups/birds.htm", "null", "height=470, width=650, scrollbars=no, top=30, left=30")
  }

function dune_drive(){
window.open("popups/dune_drive.htm", "null", "height=500, width=480, scrollbars=yes, top=30, left=30")
  }

function town(){
window.open("popups/town.htm", "null", "height=500, width=480, scrollbars=yes, top=30, left=30")
  }

function pipe(){
window.open("popups/pipe.htm", "null", "height=500, width=480, scrollbars=yes, top=30, left=30")
  }