headers = new Array();

function init_header(id,change) {

	// Get object
	obj = document.getElementById(id)

	if(obj) {

		// Select all header images
		headers = obj.getElementsByTagName("img");

		// Start fading
		if(headers.length>0) {
			random_image = Math.floor((Math.random()*100) % headers.length);
			run_header(id,change,random_image);
		}
	}
}

function run_header(id,change,current) {

	// Choose image to fade to
	previous = headers[current];
	current++;
	if(current >= headers.length) current=0;
	next = headers[current];

	// Hide previous object
	fade(previous.id,100,0,50,10);

	// Show new object
	fade(next.id,0,100,50,10);

	// Run next loop
	setTimeout("run_header('"+id+"',"+change+","+current+")",change*1000);
}