Returning an array and storing into another array, creating a multidimensional array

Returning an array and storing into another array, creating a
multidimensional array

function receive_data() {
if (xhr.readyState == 4 && xhr.status == 200)
{
var resultArr = JSON.parse(xhr.responseText);
var priceArray = new Array();
for(var ctr=0;ctr<resultArr.length;ctr++)
{
priceArray = generatePrice(resultArr[ctr].symbol);
}
alert(priceArray.length);
}
My function generatePrice() returns an array, but i can't seem to store it
in another array to create a multidimensional array. I've search
everywhere i can't seem to get it work. Thanks in advance for any help
rendered
generatePrice function:
function generatePrice(symbol) {
var xhr2;
if (window.XMLHttpRequest) {
xhr2 = new XMLHttpRequest();
} else if (window.ActiveXObject) {
xhr2 = new ActiveXObject("Microsoft.XMLHTTP");
}
var data2 = "symbol=" + symbol;
xhr2.open("POST", "generatePrice.php", true);
xhr2.setRequestHeader("Content-Type",
"application/x-www-form-urlencoded");
xhr2.send(data2);
xhr2.onreadystatechange = receive_data2;
function receive_data2() {
if (xhr2.readyState == 4 && xhr2.status == 200)
{
var priceArr = JSON.parse(xhr2.responseText);
return priceArr;
}
}
}