var interval = 8; // delay between rotating images (in seconds)
var random_display = 0; // 0 = no, 1 = yes
interval *= 1000;

var image_index = 0;
image_list = new Array();
//image_list[image_index++] = new imageItem("img/entertainment_jaychou_banner.jpg");
image_list[image_index++] = new imageItem("img/Promotions_main_entertainment2.jpg");
image_list[image_index++] = new imageItem("img/Promotion_main_arts.jpg");
image_list[image_index++] = new imageItem("img/timbre_banner.jpg");
//image_list[image_index++] = new imageItem("img/jj_concert_banner.jpg");
//image_list[image_index++] = new imageItem("img/thelionking_banner.jpg");
//image_list[image_index++] = new imageItem("img/rene-banner.jpg");
//image_list[image_index++] = new imageItem("img/arts_faithbanner.jpg");


var number_of_image = image_list.length;
function imageItem(image_location) {
	this.image_item = new Image();
	this.image_item.src = image_location;
}
function get_ImageItemLocation(imageObj) {
	return(imageObj.image_item.src);
}
function generate(x, y) {
	var range = y - x + 1;
	return Math.floor(Math.random() * range) + x;
}
function getNextImage() {
	if (random_display) {
		image_index = generate(0, number_of_image-1);
	}
	else {
		image_index = (image_index+1) % number_of_image;
	}
	var new_image = get_ImageItemLocation(image_list[image_index]);
	return(new_image);
}
function rotateImage(place) {
	var new_image = getNextImage();
	//document[place].src = new_image;

	document.getElementById(place).style.backgroundImage = "url("+new_image+")";
	if (new_image.search("entertainment2")>-1){
		document.getElementById("linkentertainment").href = "Entertainment.shtm";
		document.getElementById("linkentertainment").style.top = "105px";
		document.getElementById("linkentertainment").style.left = "400px";
		document.getElementById("linkentertainment").style.width = "520px";
		document.getElementById("linkentertainment").style.height = "170px";
	}
	
	else if (new_image.search("jj")>-1){
		document.getElementById("linkentertainment").href = "Entertainment.shtm?alpha=J&p=1";
		document.getElementById("linkentertainment").style.top = "105px";
		document.getElementById("linkentertainment").style.left = "400px";
		document.getElementById("linkentertainment").style.width = "520px";
		document.getElementById("linkentertainment").style.height = "170px";
	}
	
	else if (new_image.search("thelionking")>-1){
		document.getElementById("linkentertainment").href = "Entertainment.shtm?alpha=T&p=1";
		document.getElementById("linkentertainment").style.top = "105px";
		document.getElementById("linkentertainment").style.left = "400px";
		document.getElementById("linkentertainment").style.width = "520px";
		document.getElementById("linkentertainment").style.height = "170px";
	}
	
	else if (new_image.search("timbre")>-1){
		document.getElementById("linkentertainment").href = "Entertainment.shtm?alpha=T&p=1";
		document.getElementById("linkentertainment").style.top = "105px";
		document.getElementById("linkentertainment").style.left = "400px";
		document.getElementById("linkentertainment").style.width = "520px";
		document.getElementById("linkentertainment").style.height = "170px";
	}
	
	else if (new_image.search("faithbanner")>-1){
		document.getElementById("linkentertainment").href = "Entertainment.shtm";
		document.getElementById("linkentertainment").style.top = "105px";
		document.getElementById("linkentertainment").style.left = "400px";
		document.getElementById("linkentertainment").style.width = "520px";
		document.getElementById("linkentertainment").style.height = "170px";
	}
	
	else if (new_image.search("arts")>-1){
		document.getElementById("linkentertainment").href = "Pro_Cre_Arts_Showcase.shtm";
		document.getElementById("linkentertainment").style.top = "105px";
		document.getElementById("linkentertainment").style.left = "400px";
		document.getElementById("linkentertainment").style.width = "520px";
		document.getElementById("linkentertainment").style.height = "170px";
	}
	else{
		document.getElementById("linkhome").href = "Pro_Crd_Listing.shtm";
	}
	
	var recur_call = "rotateImage('"+place+"')";
	setTimeout(recur_call, interval);
}