// JavaScript Document
//define the globals
var pecking = true;
//preload the pecking / no pecking images used int he CSS file
var peckingOFF = new Image();
peckingOFF.src = 'images/css_gra_top.gif';
var peckingON = new Image();
peckingON.src = "images/css_gra_top_peck.gif";
// timer script for activating the "peck" script

function changeClass(what, newCSS){ // params: 1=the ID of the element to be changed 2=the Class of the ID to chage to
	document.getElementById(what).className = newCSS;
}
function peck(x){
	changeClass('gra_top', 'bird_peck_'+x);
	if(x==1){
		window.status = "pecking!";
	}else{
		window.status = "waiting...";
		wait();
	}
	return true;
}

// delay / timer script to call "peck"
function wait() {
	window.status = "waiting...";
    setTimeout('randPeck()',5000);
	return true;
}

function randPeck() {	
	window.status = "thinking about pecking...";
    var n = Math.ceil(Math.random()*10);
	if(n==1){
		peck(1);
		setTimeout('peck(0)',500);
	}else{
		wait()
	}
	return true;
}


//scripts for the don commission "flicker book"
var activeImg = 0;
var images = new Array();
images[0] = "images/don_commission/don_01.jpg";
images[1] = "images/don_commission/don_02.jpg";
images[2] = "images/don_commission/don_03.jpg";
images[3] = "images/don_commission/don_04.jpg";
images[4] = "images/don_commission/don_05.jpg";
images[5] = "images/don_commission/don_06.jpg";
images[6] = "images/don_commission/don_07.jpg";
images[7] = "images/don_commission/don_08.jpg";
images[8] = "images/don_commission/don_09.jpg";
images[9] = "images/don_commission/don_10.jpg";
images[10] = "images/don_commission/don_11.jpg";
images[11] = "images/don_commission/don_12.jpg";
images[12] = "images/don_commission/don_13.jpg";
images[13] = "images/don_commission/don_14.jpg";
images[14] = "images/don_commission/don_15.jpg";
images[15] = "images/don_commission/don_16.jpg";
images[16] = "images/don_commission/don_17.jpg";
function changeImg(inc){
	activeImg+=inc;
	if(activeImg<0)
		activeImg=images.length-1;
	else if(activeImg>=images.length)
		activeImg=0;
	document.getElementById("rotImg").src = images[activeImg];
}