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<center>
<script language="JavaScript">
var starttime=4000;var ufocontrol=true;var nImpactos=3;var nOvnis=3;var Xpos=0;var Ypos=0;
var STOPACCEL=10;var TAMOVNI=20;var REBOTE=0.65;var isNetscape=navigator.appName=="Netscape";
var impactoActual=0;var ovnis=new Array();var disparos=new Array();var impactos=new Array();
var impactos2=new Array();var activos=true;var fondoMovil=false;var backgroundOffset=0;
init();
function changeUFOs(element){activos=element.checked;}
function init(){
var text;var i=0;
text="<div id=imp20 style='POSITION: absolute;'>";
text+="<img src='http://javascript.clan.su/impact2.gif' WIDTH=11 height=14 align=bottom></div>";
for(i=0;i<nImpactos;i++){
text+="<div id=imp1"+i+" style='POSITION: absolute;'>";
text+="<img src='http://javascript.clan.su/impact1.gif' WIDTH=23 height=31 align=bottom></div>";}
for(i=0;i<nOvnis;i++){
text+="<div id=dis"+i+" style='POSITION: absolute;'>";
text+="<img src='http://javascript.clan.su/bullet.gif' WIDTH=5 height=5 align=bottom></div>";}
for(i=0;i<nOvnis;i++){
text+="<div id=ovn"+i+" style='POSITION: absolute;'>";
text+="<img src='http://javascript.clan.su/alien.gif' WIDTH=29 height=24 align=bottom></div>";}
text+="\n";
document.write(text);
for(i=0;i<1;i++){impactos2[i]=new impacto2(i);impactos2[i].obj.left=-25;impactos2[i].obj.top=-25;}
for(i=0;i<nImpactos;i++){impactos[i]=new impacto1(i);impactos[i].obj.left=-50;impactos[i].obj.top=-50;}
for(i=0;i<nOvnis;i++){disparos[i]=new disparo(i);disparos[i].obj.left=-5;disparos[i].obj.top=-5;}
for(i=0;i<nOvnis;i++){ovnis[i]=new ovni(i);ovnis[i].obj.left=-29;ovnis[i].obj.top=-24;}
if(ufocontrol){
document.write('<form>');
document.write('<input type=checkbox onClick="changeUFOs(this)" CHECKED>');
document.write('Вторжение НЛО: Вкл./Выкл.');
document.write('</form>');}
if(isNetscape){
startanimate();}else{
setTimeout("startanimate()",starttime);}}
function impacto1(i){
this.X=-20;this.Y=-20;
if(isNetscape){
this.obj=eval("document.imp1"+i);}else{
this.obj=eval("imp1"+i+".style");}}
function impacto2(i){
if(isNetscape){
this.obj=eval("document.imp2"+i);}else{
this.obj=eval("imp2"+i+".style");}}
function disparo(i){
this.X=-5;this.Y=-5;this.dx=0;this.dy=0;this.estado=0;
if(isNetscape){
this.obj=eval("document.dis"+i);}else{
this.obj=eval("dis"+i+".style");}}
function ovni(i){
this.X=-30;this.Y=-30;this.dx=0;this.dy=0;
if(isNetscape){
this.obj=eval("document.ovn"+i);}else{
this.obj=eval("ovn"+i+".style");}}
function startanimate(){
setInterval("animate()",32);}
function MoveHandlerN(e){
Xpos=e.pageX;Ypos=e.pageY;
return true;}
function MoveHandlerIE(){Xpos=window.event.x+document.body.scrollLeft;Ypos=window.event.y+document.body.scrollTop;}
if(isNetscape){
document.captureEvents(Event.MOUSEMOVE);
document.onMouseMove=MoveHandlerN;}else{
document.onmousemove=MoveHandlerIE;}
function animate(){
var deltaX,deltaY,height,width;
if(activos){
for(i=0;i<nOvnis;i++){
if(Xpos>ovnis[i].X)ovnis[i].dx+=(i+1)/5;
else ovnis[i].dx-=(i+1)/5;
if(ovnis[i].dx>STOPACCEL)ovnis[i].dx=STOPACCEL;
if(-ovnis[i].dx>STOPACCEL)ovnis[i].dx=-STOPACCEL;
if(Ypos>ovnis[i].Y)ovnis[i].dy+=(i+1)/5;
else ovnis[i].dy-=(i+1)/5;
if(ovnis[i].dy>STOPACCEL)ovnis[i].dy=STOPACCEL;
if(-ovnis[i].dy>STOPACCEL)ovnis[i].dy=-STOPACCEL;
ovnis[i].X+=ovnis[i].dx;ovnis[i].Y+=ovnis[i].dy;deltaX=Xpos-ovnis[i].X-10;deltaY=Ypos-ovnis[i].Y-10;
if((disparos[i].estado==0)&&((Math.abs(deltaX)+(Math.abs(deltaY)))<100)){
disparos[i].dx=deltaX/10;disparos[i].dy = deltaY/10;disparos[i].estado++;}
if((disparos[i].estado>0)&&(disparos[i].estado<12)){
disparos[i].X+=disparos[i].dx;disparos[i].Y+=disparos[i].dy;disparos[i].estado++;}else{
if(disparos[i].estado!=0){
impactoActual++;
if(impactoActual>=nImpactos){
impactoActual=1;}
impactos2[0].obj.left=impactos[impactoActual].X+5;impactos2[0].obj.top=impactos[impactoActual].Y+13;
impactos[impactoActual].X=disparos[i].X-10;impactos[impactoActual].Y=disparos[i].Y-14;
impactos[impactoActual].obj.left=impactos[impactoActual].X;impactos[impactoActual].obj.top=impactos[impactoActual].Y;}
disparos[i].X=ovnis[i].X+10;disparos[i].Y=ovnis[i].Y+10;disparos[i].estado=0;}
if(isNetscape){
height=window.innerHeight+document.scrollTop;width=window.innerWidth+document.scrollLeft;}else{
height=document.body.clientHeight+document.body.scrollTop;width=document.body.clientWidth+document.body.scrollLeft;}
if(ovnis[i].Y>=height-TAMOVNI-1){
if(ovnis[i].dy>0){ovnis[i].dy=REBOTE*-ovnis[i].dy;}
ovnis[i].Y=height-TAMOVNI-1;}
if(ovnis[i].X>=width-TAMOVNI){
if(ovnis[i].dx>0){ovnis[i].dx=REBOTE*-ovnis[i].dx;}
ovnis[i].X=width-TAMOVNI-1;}
if(ovnis[i].X<0){
if(ovnis[i].dx<0){ovnis[i].dx=REBOTE*-ovnis[i].dx;}
ovnis[i].X=0;}
if(ovnis[i].Y<0){
if(ovnis[i].dy<0){ovnis[i].dy=REBOTE*-ovnis[i].dy;}
ovnis[i].Y=0;}
ovnis[i].obj.left=ovnis[i].X;ovnis[i].obj.top=ovnis[i].Y;disparos[i].obj.left=disparos[i].X;
disparos[i].obj.top=disparos[i].Y;}}else{
if(impactoActual!=nImpactos+1){
for(i=0;i<nOvnis;i++){
ovnis[i].obj.left=-50;ovnis[i].obj.top=-50;disparos[i].obj.left=-10;disparos[i].obj.top=-10;}
for(i=1;i<nImpactos;i++){
impactos[i].obj.left=-20;impactos[i].obj.top=-20;}
impactos2[0].obj.left=-20;impactos2[0].obj.top=-20;impactoActual=nImpactos+1;}}}
</script>
</center>
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