var interval = 5; // delay between rotating images (in seconds)
var random_display = 0; // 0 = no, 1 = yes
interval *= 800;

var image_index = -1;
tableId = new Array();
tableId[0] = "table_01";
tableId[1] = "table_02";
tableId[2] = "table_03";
tableId[3] = "table_04";

var number_of_image = tableId.length;

function imageItem(image_location) {
this.image_item = new Image();
this.image_item.src = image_location;
}


function get_ImageItemLocation(imageObj) {
return(document.getElementById(imageObj).style.display)
}


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;
}

return(image_index);
}

function rotateImage(place) {
var new_image;
new_image = getNextImage();
//alert(new_image);
for(var i=0;i<tableId.length;i++)
{
	if (i!=image_index)
	{
	    document.getElementById(tableId[i]).style.display="none";
	}
	
}
document.getElementById(tableId[image_index]).style.display="";
var recur_call = "rotateImage('"+place+"')";
setTimeout(recur_call, interval);
}