javascript sudoku 数独智力游戏生成代码

代码如下：

<p><input value="Get New SuDoKu" type="button" onclick="onLoadTable()" id="refreshButton" /></p> 
<table border="1" style="border-color: Red;" id="mainTable"> 
<tbody> 
</tbody> 
</table> 
<script type="text/javascript" language="javascript">// <![CDATA[ 
var sudokuArray = [[],[],[],[],[],[],[],[],[],[]]; 
function onLoadTable() 
{ 
do 
{ 
sudokuArray = getNewArray(); 
sudokuArray = getSudokuArray(sudokuArray); 
} 
while(!checkArray(sudokuArray)) 
//document.getElementById("result").innerHTML=checkArray(sudokuArray); 
var table = document.getElementById("mainTable"); 
table.removeChild(table.firstChild); 
for(var i=0;i<9;i++) 
{ 
table.insertRow(i); 
for(var j=0;j<9;j++) 
{ 
     table.rows[i].insertCell(j); 
     table.rows[i].cells[j].innerHTML = sudokuArray[i][j];//Math.round(Math.random()*8+1); 
setStyle(i,j,table.rows[i].cells[j]); 
} 
} 
} 
function getSudokuArray(filledArray) 
{ 
var failed = false; 
for(var i=0;i<9;i++) 
{ 
        for(var j=0;j<9;j++) 
        { 
         var tempArray = getAvaildableArray(i, j, filledArray); 
         if(tempArray.length > 0) 
         { 
         filledArray[i][j] = tempArray[Math.round(Math.random()*(tempArray.length-1))]; 
         } 
         else 
         { 
         //window.location.reload(); 
         } 
        } 
    } 
    return filledArray; 
} 
function checkArray(array) 
{ 
for(var i=0;i<9;i++) 
{ 
        for(var j=0;j<9;j++) 
        { 
         if(array[i][j] == undefined) 
         { 
         return false; 
         } 
        } 
} 
return true; 
} 
function getAvaildableArray(rowIndex, cellIndex, array) 
{ 
var availdableArray = [1,2,3,4,5,6,7,8,9]; 
for(var n=0;n<9;n++) 
{ 
if(!isNaN(array[rowIndex][n]) && array[rowIndex][n] != undefined) 
{ 
availdableArray[array[rowIndex][n]-1] = NaN; 
} 
if(!isNaN(array[n][cellIndex]) && array[n][cellIndex] != undefined) 
{ 
availdableArray[array[n][cellIndex]-1] = NaN; 
} 
} 
var rowStartIndex = Math.floor(rowIndex/3); 
var cellStartIndex = Math.floor(cellIndex/3); 
for(var x=rowStartIndex*3;x<rowStartIndex+3;x++) 
{ 
for(var y=cellStartIndex*3;y<cellStartIndex+3;y++) 
{ 
if(!isNaN(array[x][y]) || array[x][y] != undefined) 
{ 
availdableArray[array[x][y]-1] = NaN; 
} 
} 
} 
var returnArray = []; 
for(var m=0;m<9;m++) 
{ 
if(!isNaN(availdableArray[m])) 
{ 
returnArray.push(availdableArray[m]); 
} 
} 
return returnArray; 
} 
function getNewArray() 
{ 
return [[],[],[],[],[],[],[],[],[],[]]; 
} 
function setStyle(rowIndex,cellIndex,cell) 
{ 
cell.height="20"; 
cell.width="20"; 
if(cellIndex%3==2) 
{ 
     cell.style.borderRightColor="red"; 
} 
if(cellIndex%3==0) 
{ 
     cell.style.borderLeftColor="red"; 
} 
if(rowIndex%3==2) 
{ 
     cell.style.borderBottomColor="red"; 
} 
if(rowIndex%3==0) 
{ 
     cell.style.borderTopColor="red"; 
} 
} 
// ]]></script>