Factrotation = new Array ("graphics/fact-e1.gif","graphics/fact-e2.gif","graphics/fact-e3.gif","graphics/fact-e4.gif","graphics/fact-e5.gif","graphics/fact-e6.gif")

FactURL = new Array ("http://www.enviroliteracy.org/article.php/18.html",
"http://www.eia.doe.gov/kids/energyfacts/sources/renewable/biomass.html",
"http://bicycleuniverse.info/transpo/almanac.html",
"http://www.nature.com/nature/journal/v438/n7067/full/438410a.html",
"http://www.nrplp.com/index.cfm/MenuItemID/219.htm",
"http://api-ec.api.org/newsplashpage/index.cfm")


imgCt = Factrotation.length


function chooseFact() {
  if (document.images) {
  randomNum = Math.floor ((Math.random()* imgCt))
  document.fact.src = Factrotation[randomNum]
}
}



function newLocation() {
   document.location.href = FactURL[randomNum]
}



adrotation = new Array ("graphics/ad-conguide.gif", "graphics/ad-econplan.gif")

adURL = new Array ("http://www.nicholas.duke.edu/institute/ccpp/convenientguide/", "http://www.nicholas.duke.edu/institute/carboncosts/")



imgCtAd = adrotation.length




function chooseAd() {
  if (document.images) {
  randomNumAd = Math.floor ((Math.random()* imgCtAd))
  document.ad.src = adrotation[randomNumAd]
}
}


function newLocationAd() {
   document.location.href = adURL[randomNumAd]
}