// JavaScript Document

// starts and stops jpg animation behavior
var t = "";

// holds the number for the index in the images array
var c = 0;

function preloader() {

	// counter
	var i = 0;
	
	// create object
	imageObj = new Image();
	
	// set image list
	images = new Array();
	images[0]="/monthlytheme/november/graphics/reading.jpg";
	images[1]="/monthlytheme/november/graphics/thanksgiving.jpg";
	images[2]="/monthlytheme/november/graphics/geography.jpg";
	images[3]="/monthlytheme/november/graphics/veterans.jpg";
	
	// ADD NEW THEMES IF NECESSARY BY COPYING & PASTING THE SOURCE ABOVE AND INCREMENTING THE THEME NUMBER
	
	// start preloading
	for(i=0; i<=3; i++) {
		imageObj.src=images[i];
	
	startAni();
	return images;
	}
} 

function disp_img() {
	if (c == 4)
		{
		c = 0;
		}
	document.thmImg.src = images[c];
	c++;
}

function chgImg(imgField,newImg) {
	if (document.images) {
		document[imgField].src = images[newImg];
		c = newImg;
		t = clearInterval(t)
	}
}

function startAni()  {
		t = setInterval("disp_img()", 5000);
}