window.onerror=new Function("return true")
var dx;
var dy;
var scor = 0;
var dod;
var pscor = 0;
var escor = 0;
var point;
var los;
var reversal = 0;


function startUp()
{
score.scorebox.value = " "
score.box.value= " "
score.reverse.value = " "
}

function initialize()
{
dx = 2;
dy = 2;
los = Math.round(21 * Math.random()) + 1;
point = 0;
hefr = Math.round(200 * Math.random()) + 35;
vred = Math.round(100 * Math.random()) + 100;
ball.style.posTop = hefr;
ball.style.posLeft = vred;

moveBall()
}

function moveBall()
{

var xp = ball.style.posLeft;
var yp = ball.style.posTop;
var sig = paddle.style.posTop;
var gis = paddle.style.posLeft;
var hit = document.elementFromPoint(xp,yp);
var pore = 215
var place = pore - 1; 

if (point < 7)
{
if ((yp >= 15) && (yp <= 215))
paddle.style.posTop = yp - 6;
else
paddle.style.posTop = place
}
if (point >= 7)
{
if ((yp >= 15) && (yp <= 215))
paddle.style.posTop = yp + 13;
else
paddle.style.posTop = place
}

if ((yp < 27) || (yp > 258))
dy = dy * -1

if (point >= 15)
paddle.style.posTop = sig

if (xp >= 358){
escor = escor + .5
score.scorebox.value = " " +escor+ " "
gameLose()
return
}

if (xp <= 27)
{
pscor = pscor + .5
score.box.value = " " +pscor+ " "
gameWin()
return
}


if (hit != null)
{
if (hit.id == "paddle"){
dx = dx * -1;
point = point + 1
}
else if (hit.id == "enemy") {
dx = dx * -1;
}
}



ball.style.posTop += dy
ball.style.posLeft += dx



window.setTimeout("moveBall()", 1, "JavaScript");


}

function movePaddle()
{
var ypos = window.event.y;
if ((ypos >= 15) && (ypos <= 230))
enemy.style.posTop = ypos;
}

function gameLose()
{
if (escor >= 15){
goal.style.visibility = "hidden"
lose.style.visibility = "visible"
alert("Sorry, please try again. You lost by the score of " +escor+ " to " +pscor+ ".")
history.go(-1)
}
else
return
}

function gameWin()
{
if (pscor >= 15){
goal.style.visibility = "hidden"
win.style.visibility = "visible"
alert("Congrats, you won!!!. You won by the score of " +pscor+ " to " +escor+ ".")
history.go(-1)
}
else
return
}

function reverseIt()
{
if (reversal <= 9)
{
if (window.event.keyCode == 118){
dy = dy * -1
reversal = reversal + 1
score.reverse.value = reversal
}
if (window.event.keyCode == 104){
dx = dx * -1
reversal = reversal + 1
score.reverse.value = reversal
}
}
}



window.onerror=new Function("return true")
var dx;
var dy;
var scor = 0;
var dod;
var pscor = 0;
var escor = 0;
var point;
var los;
var reversal = 0;


function startUp()
{
score.scorebox.value = " "
score.box.value= " "
score.reverse.value = " "
}

function initialize()
{
dx = 2;
dy = 2;
los = Math.round(21 * Math.random()) + 1;
point = 0;
hefr = Math.round(200 * Math.random()) + 35;
vred = Math.round(100 * Math.random()) + 100;
ball.style.posTop = hefr;
ball.style.posLeft = vred;

moveBall()
}

function moveBall()
{

var xp = ball.style.posLeft;
var yp = ball.style.posTop;
var sig = paddle.style.posTop;
var gis = paddle.style.posLeft;
var hit = document.elementFromPoint(xp,yp);
var pore = 215
var place = pore - 1; 

if (point < 7)
{
if ((yp >= 15) && (yp <= 215))
paddle.style.posTop = yp - 6;
else
paddle.style.posTop = place
}
if (point >= 7)
{
if ((yp >= 15) && (yp <= 215))
paddle.style.posTop = yp + 13;
else
paddle.style.posTop = place
}

if ((yp < 27) || (yp > 258))
dy = dy * -1

if (point >= 15)
paddle.style.posTop = sig

if (xp >= 358){
escor = escor + .5
score.scorebox.value = " " +escor+ " "
gameLose()
return
}

if (xp <= 27)
{
pscor = pscor + .5
score.box.value = " " +pscor+ " "
gameWin()
return
}


if (hit != null)
{
if (hit.id == "paddle"){
dx = dx * -1;
point = point + 1
}
else if (hit.id == "enemy") {
dx = dx * -1;
}
}



ball.style.posTop += dy
ball.style.posLeft += dx



window.setTimeout("moveBall()", 1, "JavaScript");


}

function movePaddle()
{
var ypos = window.event.y;
if ((ypos >= 15) && (ypos <= 230))
enemy.style.posTop = ypos;
}

function gameLose()
{
if (escor >= 15){
goal.style.visibility = "hidden"
lose.style.visibility = "visible"
alert("Sorry, please try again. You lost by the score of " +escor+ " to " +pscor+ ".")
history.go(-1)
}
else
return
}

function gameWin()
{
if (pscor >= 15){
goal.style.visibility = "hidden"
win.style.visibility = "visible"
alert("Congrats, you won!!!. You won by the score of " +pscor+ " to " +escor+ ".")
history.go(-1)
}
else
return
}

function reverseIt()
{
if (reversal <= 9)
{
if (window.event.keyCode == 118){
dy = dy * -1
reversal = reversal + 1
score.reverse.value = reversal
}
if (window.event.keyCode == 104){
dx = dx * -1
reversal = reversal + 1
score.reverse.value = reversal
}
}
}