Get image url google cse JSON

Get image url google cse JSON

I am trying to retrieve images from JSON CSEand no success, I am able to
retrieve title and description by
for (var i = 0; i < response.items.length; i++)
{
var item = response.items[i];
var title = item.htmlTitle;
...
But I am not able to query image url from JSON, here is JSON schema:
"items": [
{
"kind": "",
"title": "",
"htmlTitle": "",
"link": "",
"displayLink": "",
"snippet": "",
"htmlSnippet": "",
"cacheId": "",
"formattedUrl": "",
"htmlFormattedUrl": "",
"pagemap": {
"product": [
{
"name": "",
"image": "",
"description": ""
}
],
"cse_image": [
{
"src": ""
}
],
I tried:
item.pagemap.product.image
item.[pagemap][product].image
item.product.image
etc
Please help.