=====Example=====
var ary = new Array(10);
for (var i=0; i<<ary.length; i++) { document.write(i + ":" + ary[i] + "<<br/>>");
}
var num = new Array("one", "two", "three");
for (var i=0; i<<num.length; i++) { document.write(i + ":" + num[i] + "<<br/>>");
}
var alpha = ["a", "b", "c", "d"];
for (var i=0; i<<alpha.length; i++) { document.write(i + ":" + alpha[i] + "<<br/>>");
}