var i=1, j=1;

while (i <= 10)
{
    while (j <= 10)
    {
        document.write(i + "*" + j + "=" + (i*j) + "<br>");
        ++j;
    }

    document.write("========================================<br>");
    j=1;
    ++i;
}




for (var i = 1; i <= 10; ++i)
{
    for (var j = 1; j <= 10; ++j)
        document.write(i + "*" + j + "=" + (i*j) + "<br>");

    document.write("======================================<br>");
}