var bgslides=new Array()
bgslides[0]="ninhthuan/image/bg1.jpg"
bgslides[1]="ninhthuan/image/bgtet1.jpg"
bgslides[2]="ninhthuan/image/bgtet2.jpg"
bgslides[3]="ninhthuan/image/bgtet3.jpg"
bgslides[4]="ninhthuan/image/bgtet4.jpg"
bgslides[5]="ninhthuan/image/bgtet5.jpg"
bgslides[6]="ninhthuan/image/bgtet6.jpg"
//Specify interval between slide (in miliseconds)
var speed=5000

//preload images
var processed=new Array()
for (i=0;i<bgslides.length;i++){
processed[i]=new Image()
processed[i].src=bgslides[i]
}

var inc=-1

function slideback(){
if (inc<bgslides.length-1)
inc++
else
inc=0
document.body.background=processed[inc].src
}

if (document.all||document.getElementById)
window.onload=new Function('setInterval("slideback()",speed)')