$H()函数把一些对象转换成一个可枚举的和联合数组类似的Hash对象。

<script>
function testHash()
{
//let's create the object
var a = {
first: 10,
second: 20,
third: 30
};
//now transform it into a hash
var h = $H(a);
alert(h.toQueryString()); //displays: first=10&second=20&third=30
}

testHash();
</script>

prototype-1.6.0.2.js下载    演示