// JavaScript refpic.js
var interval = 10 * 1000; // delay between rotating images (in seconds)
var random_display = 0; // 0 = no, 1 = yes
var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem("sup/centrocrop.jpg");
image_list[image_index++] = new imageItem("sup/escuelacrop.jpg");
image_list[image_index++] = new imageItem("sup/municrop.jpg");
image_list[image_index++] = new imageItem("sup/pueblocrop.jpg");
image_list[image_index++] = new imageItem("sup/zinroocrop.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;
		image_index = generate(0, number_of_image-1);
	}
	var new_image = get_ImageItemLocation(image_list[image_index]);
	return(new_image);
}

function rotateImage(place) {
	var new_image = getNextImage();
	document[place].src = new_image;
//	var recur_call = "rotateImage('"+place+"')";
//	setTimeout(recur_call, interval);
}

//	var image_index = 0;
//	var JPG=new Array();
//	JPG[image_index++]="url(img/01a-DisenyoTriqui-trc.jpg)";
//	JPG[image_index++]="url(img/01a-faja3-xtn.jpg)";
//	JPG[image_index++]="url(img/01a-Mixteca-TejidoTriqui.jpg)";   
//	JPG[image_index++]="url(img/01a-Zapoteca-Tapete.jpg)";
//	JPG[image_index++]="url(img/01a-petate-zpo.jpg)";
//	var number_of_image = JPG.length;
//	var whichJPG=Math.floor(Math.random() * number_of_image-1);
//	function tb(place) {
		//document.getElementById(place).style.backgroundImage = JPG[whichJPG];
//	}