Alexandroppolus,
так?
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
</style>
</head>
<body>
<div id="table"></div>
<script>
function generateTable(row, column){
var table = '<table>';
for(var i=1;i<=row;i++){
table += '<tr>';
for(var j=1;j<=column; j++){
table += '<td>' + i + ':' + j + '</td>';
}
table += '</tr>';
}
table += '</table>';
document.getElementById('table').innerHTML = table;
}
generateTable(10,10);
function getColor() {
return "#" + ("000000" + (Math.random() * 16777215 | 0).toString(16)).slice(-6);
}
var td=[].slice.call(document.querySelectorAll('td'),0), n = 6;
for (var i = 0; i < n; i++) {
var k = Math.random() * td.length|0,
el = td[k];
td[k] = td.pop();
td[k] == el && td.length--;
el.style.backgroundColor = getColor();
}
</script>
</body>
</html>