function random_header(root){
var headerimages=new Array()

if(root){
	headerimages[1]="images/header/header.jpg"
}

if(root == false){
	headerimages[1]="../images/header/header.jpg"
}
if(root == "sub"){
	headerimages[1]="../../images/header/header.jpg"
}

	var ry=Math.floor(Math.random()*headerimages.length)
	if (ry==0)
	ry=1
	if(navigator.appName=='Microsoft Internet Explorer')
		document.write('<img src="'+headerimages[ry]+'" width=975 border=0/>')
	else
		document.write('<img src="'+headerimages[ry]+'" width=973 border=0/>')
}