//preload images

imgm = new Array()
imgm[0] = new Image()
imgm[0].src = "home-0.gif"
imgm[1] = new Image()
imgm[1].src = "home-1.gif"
imgm[2] = new Image()
imgm[2].src = "home-2.gif"
imgm[3] = new Image()
imgm[3].src = "enviro-0.gif"
imgm[4] = new Image()
imgm[4].src = "enviro-1.gif"
imgm[5] = new Image()
imgm[5].src = "enviro-2.gif"