Swap elements in array?

[markster]

Is there any kind of code that will swap the elements that are in the middle of an array, eg:

var array = new Array("a","b","c","d","e","f","g","h");
swap(array,"b","d");

So it outputs a,d,c,b,e,f,g,h (b and d have swapped places).

If anyone has code that can do this or some sort of starting point for me I would be very thankful.

[markster]

Actually, never mind, I've got it. I swept the cobwebs from my mind and put it to work. Heres what I've come up with:

function swap(array,index1,index2) {
	var firstRep = array[index1];
	var secondRep = array[index2];
	var output = new Array();
	for (ar in array) {
		if (ar==index1) {
			output[index1] = secondRep;
		} else if (ar==index2) {
			output[index2] = firstRep;
		} else {
			output[ar] = array[ar];
		}
	}
	return output;
}
function test() {
	var output = "";
	var start = new Array("a","b","c","d","e","f","g");
	for (st in start) {
		output += start[st];
	}
	alert(output);
	output = "";
	var newArray = swap(start,1,3);
	for (ne in newArray) {
		output += newArray[ne];
	}
	alert(output);
}