var animation=275; var incr=8; var minan=50; var wy=55;          
var w3c=(document.getElementById)?true:false;var ns4=(document.layers)?true:false;
var ie4=(document.all && !w3c)?true:false;var ie5=(document.all && w3c)?true:false;
var ns6=(w3c && navigator.appName.indexOf("Netscape")>=0)?true:false;
var gophers=new Array(), backdrop, hammer, text , gx , wx , smash;
var hit=0, strikes=0, missed=0, counter=0, id=0, level=1, oktoplay=true, currentG=0;
var xcoords=[0,110,240,370,76,182,288,394,95,230,365];var ycoords=[0,58,58,58,105,105,105,105,178,178,178];
var gwidths=[0,20,20,20,30,30,30,30,40,40,40];var gheights=[0,30,30,30,45,45,45,45,60,60,60];var cache=new Array();
cache[0]=new Image(); cache[0].src="down.gif";cache[1]=new Image(); cache[1].src="up.gif";
cache[2]=new Image(); cache[2].src="down.gif";function init(){
backdrop=getid('backdrop');hammer=getid('hammer');
smash=(ns4)? document.layers['hammer'].document.images['smash'] : document.images['smash'];
text=getid('text');updatescore();wx=(ie4||ie5)?document.body.clientWidth:window.innerWidth;
moveidto( backdrop, (wx-500)/2, wy);moveidto( text, (wx-300)/2, wy+250+10);
for(i=1;i<=10;i++){
gophers[i]=new gopher(i);clipelement(gophers[i].ID, 0 ,gophers[i].w, 5, 0);
moveidto(gophers[i].ID , xcoords[i]+(wx-500)/2 , ycoords[i]+wy);}
if(ns4)document.captureEvents(Event.MOUSEMOVE | Event.KEYPRESS | Event.MOUSEDOWN | Event.MOUSEUP);
document.onmousemove=moveobj;document.onkeypress=pausegame;
document.onmousedown=function(){
  if(oktoplay)smack();}
document.onmouseup=function(){
  smash.src="up.gif";}
window.onresize=function(){
  if(ns4)setTimeout('history.go(0)',400);}
alert('Press "Ok" to start the game.');getgophernum();id=setInterval('animate()', animation);}
function getid(id){
if(ns4) return document.layers[id];else if(ie4)return document.all[id];
else return document.getElementById(id);}
function gopher(i){
this.ID=getid('g'+i);
this.ID.i=i;this.w=gwidths[i];this.h=gheights[i];this.ctr=0;this.step=this.h/5;this.up=true;this.clipamnt=5;
if(ns4)this.ID.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
this.ID.onmouseover=function(){
  currentG=this.i;}
this.ID.onmouseout=function(){
  currentG=0;}}
function pausegame(){
clearInterval(id);alert('Game paused...\n\nPress "Ok" to continue.');
id=setInterval('animate()' , animation);}
function updatescore(){
var per=(Math.floor((hit/strikes*1000))/10);if(isNaN(per))per='?';
var tmptxt='<table cellpadding="2" cellspacing="0" border="0" width="250"><tr><td align="left" width="190">Level:</td><td align="left" width="60">'+level+'</td></tr><tr><td align="left">Critters hit:</td><td align="left">'+hit+'</td></tr><tr><td align="left">Critters missed:</td><td align="left">'+missed+'</td></tr><tr><td align="left">Mallet hits:</td><td align="left">'+strikes+'</td></tr><tr><td align="left">Hit Accuracy:</td><td align="left">'+per+' %</td></tr></table>';
if(ns4){
text.document.open();text.document.write('<div style="position:absolute; left:0px; top:0px;">'+tmptxt+'</div>');
text.document.close();
}else text.innerHTML=tmptxt;}
function moveobj(evt){
var ex=(ie4||ie5)?event.clientX:evt.pageX;var ey=(ie4||ie5)?event.clientY:evt.pageY;moveidto(hammer,ex-10,ey-53);
return false;}
function smack(){
smash.src="down.gif"; strikes++;updatescore();
if(currentG!=0){
var gtmp=gophers[currentG];
if(gtmp.ctr!=0){
counter++;chkspeed();clearInterval(id);
moveidto(gophers[gx].ID , xcoords[currentG]+(wx-500)/2 , ycoords[currentG]+wy);
clipelement(gophers[gx].ID, 0, gophers[gx].w, 5, 0);
gophers[gx].ctr=0;gophers[gx].clipamnt=5;gophers[gx].up=true;getgophernum();hit++;
id=setInterval('animate()',animation);}}}
function animate(){
var clipdir=(gophers[gx].up)? '+' : '-';eval('gophers[gx].clipamnt'+clipdir+'='+gophers[gx].step);
clipelement(gophers[gx].ID , 0 , gophers[gx].w , gophers[gx].clipamnt , 0);
var ga=(gophers[gx].up)? -gophers[gx].step : gophers[gx].step;if(ns4)gophers[gx].ID.top=gophers[gx].ID.top+ga;
else gophers[gx].ID.style.top=parseInt(gophers[gx].ID.style.top)+ga+'px';gophers[gx].ctr++;
if(gophers[gx].ctr==4)gophers[gx].up=false;if((gophers[gx].ctr==0)||(gophers[gx].ctr==8)){
clearTimeout(id);missed++;updatescore();if(missed==20){
gophers[gx].ctr=0;oktoplay=false;alert('You made it to level '+level+'.\n\nClick "Ok" to try again');history.go(0);
}else{
gophers[gx].ctr=0;gophers[gx].clipamnt=5;gophers[gx].up=true;getgophernum();counter++;chkspeed();
id=setInterval('animate()',animation);}}}
function chkspeed(){
if((counter%5)==0){
if(animation>=minan)animation=animation-incr;level++;
updatescore();}}
function moveidto(id,x,y){
if(ns4)id.moveTo(x,y);else{
id.style.left=x+'px';id.style.top=y+'px';}}
function clipelement(id, ctop, cright, cbot, cleft){
if(ns4){
id.clip.left= cleft;id.clip.top=ctop;id.clip.right=cright;
id.clip.bottom=cbot;}
else id.style.clip='rect('+ctop+' '+cright+' '+cbot+' '+cleft+')';}
function getgophernum(){gx=Math.floor(Math.random()*10)+1;}window.onload=init;

  function ROn(TD) {if (!TD.contains(event.fromElement)) {TD.bgColor="AA0000";}}
  function ROf(TD) {if (!TD.contains(event.toElement)) {TD.bgColor="003300";}}