var interval = 6; // delay between rotating images (in seconds)
var random_display = 0; // 0 = no, 1 = yes
interval *= 1000;
var changestartingplace = 0;



var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem("site-images/rotate1.jpg");
image_list[image_index++] = new imageItem("site-images/rotate2.jpg");
image_list[image_index++] = new imageItem("site-images/rotate3.jpg");
image_list[image_index++] = new imageItem("site-images/rotate4.jpg");
image_list[image_index++] = new imageItem("site-images/rotate5.jpg");
image_list[image_index++] = new imageItem("site-images/rotate6.jpg");
image_list[image_index++] = new imageItem("site-images/rotate7.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(startingplace) {
	if (changestartingplace == 0){
		image_index = startingplace;
		var quicktest = image_index+1;
		if (image_index == quicktest){ image_index+1;}
		changestartingplace = 1;
	}	
	image_index = image_index+1;
	if (image_index == number_of_image){
		image_index = 0;
	}
	var new_image = get_ImageItemLocation(image_list[image_index]);
	return(new_image);
}

function rotateImage(startingplace) {
	var new_image = getNextImage(startingplace);
	document.getElementById('rImage').src = new_image;
	var recur_call = "rotateImage('rImage')";
	setTimeout(recur_call, interval);
}

function setOpacity(obj, opacity) {

  opacity = (opacity == 100)?99.999:opacity;

  

  // IE/Win

  obj.style.filter = "alpha(opacity:"+opacity+")";

  

  // Safari<1.2, Konqueror

  obj.style.KHTMLOpacity = opacity/100;

  

  // Older Mozilla and Firefox

  obj.style.MozOpacity = opacity/100;

  

  // Safari 1.2, newer Firefox and Mozilla, CSS3

  obj.style.opacity = opacity/100;

}

function fadeIn(objId,opacity) {

  if (document.getElementById) {

    obj = document.getElementById(objId);

    if (opacity <= 100) {

      setOpacity(obj, opacity);

      opacity += 10;

      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);

    }

  }

}

function fadeOut(objId,opacity) {

  if (document.getElementById) {

    obj = document.getElementById(objId);

    if (opacity >= 0) {

      setOpacity(obj, opacity);

      opacity -= 10;

      window.setTimeout("fadeIn('"+objId+"',"+opacity+")", 100);

    }

  }

}