XML : How to parse android attributes from JSON converted from XML in Javascript?

I am trying to parse `android:versionName' from following JSON object :

{"android:hardwareAccelerated":"true","android:versionCode":"40020","android:versionName":"4.0.20","package":"com.xxx.xxx","xmlns:android":"http://schemas.android.com/apk/res/android"}

can anybody help me in this??