<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android">
    <ImageButton
    	android:id="@+id/btnBack"
    	android:layout_width="wrap_content"
    	android:layout_height="50dip"
    	android:layout_alignParentBottom="true"
    	android:layout_alignParentLeft="true"
    	android:adjustViewBounds="true"
    	android:scaleType="centerInside"
    	android:background="@android:color/transparent"
    	android:src="@drawable/backbutton"/>
</merge>