javascript hash map implementation

[Nickleus]

here's my example of a hashmap that i've devised based on this page:
http://www.quirksmode.org/js/associative.html

<script>
var enToNo = new Object
var noElements = new Array("FORNAVN","ETTERNAVN","ALDER")
var enElements = new Array("FIRST NAME","LAST NAME","AGE")
for(var i = 0; i < enElements.length; i++) {
    enToNo[noElements[i]] = enElements[i];
}
var norwegianWord = 'ETTERNAVN'
alert(enToNo.ETTERNAVN)
alert(enToNo['ETTERNAVN'])
alert(enToNo[norwegianWord])
</script>

so here i've got 2 arrays that i want to convert into a hash map, and it can be used in at least 3 different ways (see the alert examples)

[Nickleus]

<script>
var x = {};
x["a"]= "1";
x["b"]= "2";

alert(x.b);

</script>

i got the idea from this page: http://www.codingforums.com/showpost...60&postcount=9