var bgslides = new Array()

bgslides[0]="images/header5.png"
bgslides[1]="images/header4.png"

var speed = 3000
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
	//document.getElementById("header").style.backgroundImage = "url('" + processed[inc].src + "')"
	document.getElementById("header").src = processed[inc].src;
}