picFollow = new Image();
picFollow.src = "photos/silly/bassbomb/bomb.gif";
picExplosion = new Image();
picExplosion.src = "photos/silly/bassbomb/explode.gif";


document.onmousemove = getMousePosition;
document.onmouseout = pauseBomb;

document.write("<div id=\"diva\" style=\"position:absolute\">");
document.write("<img name=\"pic\"src=" + picFollow.src + "></div>");
var picX = 20;
var picY = 100;
var step = 10;
var speed = 100;
var tolerance = step/2 +1;

var mouseX = 0;
var mouseY = 0;
var mouseOut = true;
var followMouse = false;

myInterval = setInterval('moveBomb()', speed);

function pauseBomb()
{
	mouseOut = true;
}

function getMousePosition(e)
{
	mouseX = window.event.x + document.body.scrollLeft;
	mouseY = window.event.y + document.body.scrollTop;
	mouseOut = false;
	if(followMouse)
	{
		diva.style.left = mouseX - pic.width/2;
		diva.style.top = mouseY - pic.height/2;
	}
}

function calcNewPos()
{
	if(mouseX == picX)
		return;
	arg = (mouseY-picY)/(mouseX-picX);
	mult = 1;
	if(mouseX-picX < 0)
		mult = -1;
	alpha = Math.atan(arg);
	dx = mult * step * Math.cos(alpha);
	dy = mult * step * Math.sin(alpha);
	picX += dx;
	picY += dy;
}

function collision()
{
	if((Math.abs(picX-mouseX) < tolerance) && (Math.abs(picY-mouseY) < tolerance) && 
		(!mouseOut))
		return true;
	return false;
}

function hideAnimation()
{
	diva.style.visibility = "hidden";
}

function moveBomb()
{
	calcNewPos();
	window.status = "x,y"+mouseX+" "+mouseY;
	diva.style.left = picX - pic.width/2;
	diva.style.top = picY - pic.height/2;
	if(collision())
	{
		clearInterval(myInterval);
		pic.src = picExplosion.src;
		followMouse = true;
		setTimeout('hideAnimation()', 600);
	}
}