homePics = new Array ("images/hm_pic1.jpg","images/hm_pic2.jpg","images/hm_pic3.jpg","images/hm_pic4.jpg")
		imgCt = homePics.length
		
		function choosePic(){
			if (document.images) {
			randomNum = Math.floor ((Math.random() * imgCt))
			document.homepic.src = homePics[randomNum]
			}
		}

subPics = new Array ("images/sub_pic1.jpg","images/sub_pic2.jpg","images/sub_pic3.jpg","images/sub_pic4.jpg")
		imgCt = subPics.length
		
		function chooseSubPic(){
			if (document.images) {
			randomNum = Math.floor ((Math.random() * imgCt))
			document.subpic.src = subPics[randomNum]
			}
		}