.length; i++) {
draw(j,i, getName( board));
}
}
message("Вы можете уже играть ! Вам нужно переместить пирамиду на одну из трех полочек (любую)!");
}

function restart(start) {
startpost = start;
disks = document.forms[0].disc.options[document.forms[0].disc.selectedIndex].text;
initboard(startpost,disks);
drawall();
theAnim = new Animation();
}
initboard(startpost, disks);

function getName( num ) {
if (num == 0) return "post.gif";
return "disk" + num + ".gif";
}

function message(str, force) {
if (force || !game_is_over && !show_messages)
document.disp.message.value = str;
}

function messageadd(str) {
if (!game_is_over)
document.disp.message.value = document.disp.message.value + "\n" + str;
}

function isempty(num) {
for (i = 0; i < board[num].length; i++) {
if ( board [num]!= 0) return false;
}
return true;
}

function topmost(num) {
for (i = 0; i < board[num].length; i++) {
if (board [num]!= 0) return i;
}
return -1;
}

function ispost(i,j) {
return (board == 0);
}

function istopdisk(i,j) {
return (board[i-1] == 0);
}

function drawboard() {
document.writeln("<div align=center><center><table cellspacing=0 cellpadding=0 border=0>");
document.write("<tr>");
for (j = 0; j < board.length; j++) {
document.write("<td>");
document.write("<a href='javascript:clicked("+0+","+j+")'><img src='" + imgdir + "posttop.gif' border=0></a><br>");
for (i=0; i< board[0].length; i++) {
document.write("<a href='javascript:clicked("+i+","+j+")'>");
document.write("<img src='" + imgdir + getName(board) + "' name='pos"+ j + i + "' border=0><br>");
document.write("</a>");
}
document.writeln("</td>");
}
document.write("</tr></table>");
document.write("<form name='disp'><textarea name='message' wrap=virtual rows=2 cols=40></textarea><br><br>" +
"<font face=\"MS Sans Serif\" size=\"1\">Всего Дисков: </font><select name=\"disc\" size=1 style=\"font-family: MS Sans Serif; font-size: 1\"><option>3<option>4<option>5<option>6<option selected>7</select><input "
+"type=button value=\"Начать игру\" onClick=\"restart(startpost);\" size=1 style=\"font-family: MS Sans Serif; font-size: 1\"></form>");
}

function draw(x,y,name) {
document.images["pos"+x+""+y].src = imgdir + name;
}

function animate(x,y,name) {
theAnim.addFrame( "pos"+x+""+y, imgdir + name);
}

function clicked(i,j) {
document.forms[0].message.focus(); // get rid of annoying outline in MSIE
document.forms[0].message.blur();

if (game_is_over) restart(startpost = endpost);
if (!isselection() && ispost(i,j)) { message(":)"); return; }
if (!ispost(i,j)) { toggle(j); return; };
if (ispost(i,j) && selectedc == j) { message(":)"); return; }
if (!legalmove(j)) { message(":)"); return; }
move(j); return;
}

function legalmove(j) {
if (isempty(j)) return true;
return (board[topmost(j)] < board[selectedc][selectedr]);
}

function isselection() {
return selectedc != null;
}

function toggle( num ) {
var toppos = topmost(num);

if (selectedc == num && selectedr == toppos) {
selectedc = null; selectedr = null;
animate(num,toppos,"disk" + board [num][toppos]+ ".gif");
message(":)");
return;
}
if (isselection()) {
animate(selectedc,selectedr,"disk" + board [selectedc][selectedr]+ ".gif");
}
selectedc = num; selectedr = toppos;
animate(num,toppos,"disk" + board [num][toppos]+ "h.gif");
message(":)");
}

function move( num ) {
var toppos = (!isempty(num) ? topmost(num) : board[num].length);
board[num][toppos-1] = board[selectedc][selectedr];
board [selectedc][selectedr]= 0;
animate(selectedc,selectedr,"post.gif");
animate(num,toppos-1,"disk" + board[num][toppos-1] + ".gif");
selectedc = null; selectedr = null;
message(":)");
game_over();
}

function hanoi(no_of_disks, start_post, goal_post) {
if (no_of_disks > 0) {
var free_post = all_posts - start_post - goal_post;
hanoi (no_of_disks - 1, start_post, free_post);
show_messages = true;
toggle(start_post);
move(goal_post);
show_messages = false;
hanoi (no_of_disks - 1 , free_post, goal_post);
game_over(true);
}
}

function game_over(forceMsg) {
var filledpost = null;
var val = 0;
for (k = 0; k < board.length; k++) {
val += ( isempty(k) ? 1 : 0 );
if (!isempty(k)) filledpost = k;
}

if (val == 2 && isempty(startpost)) {
message("Вы выграли! А ещё будете играть ?", forceMsg);
game_is_over = true;
endpost = filledpost;
}
return game_is_over;
}
//
// Animation functions
//
function Animation() {
this.imageNum = new Array(); // Array of indicies document.images to be changed
this.imageSrc = new Array(); // Array of new srcs for imageNum array
this.frameIndex = 0; // the frame to play next
this.alreadyPlaying = false; // semaphore to ensure we play smoothly
this.getFrameCount = getframecount; // the total numebr of frame so far
this.moreFrames = moreframes; // tells us if there are more frames to play
this.addFrame = addframe; // add a frame to the animation
this.drawNextFrame = drawnextframe; // draws the next frame
this.startAnimation = startanimation; // start the animation if necessary
}
function getframecount() { return this.imageNum.length; }
function moreframes() { return this.frameIndex < this.getFrameCount(); }
function startanimation() {
if (!this.alreadyPlaying) {
theAnim.alreadyPlaying = true;
setTimeout('theAnim.drawNextFrame()',5);
}
}
function addframe(num, src) {
var theIndex = theAnim.imageNum.length;
theAnim.imageSrc [theIndex]= src;
theAnim.imageNum [theIndex]