Restructuring JSON

RestructuringJson.js

var m = [{a:'a',b:'b'},{a:'c',b:'d'}];
//regard m as a JSON
var img = new Array();
for (x in m )
{
  var val = m[x].a;
  img[x]={img:val,name:val}
}
//img[0]={img:'a', name :'a'}
//img[1]={img:'c', name :'c'}
//this is the result we want to get.
console.log(img);