if (document.images){
img1=new Image
img2=new Image
img3=new Image
img4=new Image
img1.src="image/photo/NIC01.jpg"
img2.src="image/photo/NIC02.jpg"
img3.src="image/photo/NIC03.jpg"
img4.src="image/photo/NIC04.jpg"
}
else{
img1=""
img2=""
img3=""
img4=""
}
var bnrImages = new Array
("image/photo/NIC01.jpg","image/photo/NIC02.jpg","image/photo/NIC03.jpg","image/photo/NIC04.jpg")
var thisAd = 0
function changeImg(){
 if (document.images){
  if(document.adBanner.complete){
  thisAd++
   if(thisAd==4){
   thisAd=0
   }
   document.adBanner.src=bnrImages[thisAd]
  }
 setTimeout("changeImg()",1*500)
 }
}