<script language="JavaScript">
//定义二维数组并初始化
var aEg = new Array(
["a1","a2","a3"],
["b1","b2","b3"]);var i, j;
//输出二维数组元素的值
for (i=0; i < aEg.length; i++)
{
 for (j=0; j < aEg[i].length; j++)
 {
  document.write(aEg[i][j]);
  document.write('　');
 }
 document.write('<BR>');
}
</script>