How to read an image file from phonememory folder in phonegap

See more:

PhoneGap

Cordova

I want to read an image from Phonememory folder but unable to read.
i have no idea whats wrong.
can anybody help me out

What I have tried:

<script>

document.addEventListener("deviceready", onDeviceReady, false);

function onDeviceReady() {
window.requestFileSystem(LocalFileSystem.PERSISTENT, 0, gotFS, onFail);
}

function onFail(message) {
alert('Failed because: ' + message);
}

function gotFS(fileSystem) {
fileSystem.root.getFile("/MyAppFolder/A.jpg", { create: true }, gotFileEntry, fail);
}

function gotFileEntry(fileEntry) {
fileEntry.file(gotFile, fail);
}

function gotFile(file) {
readDataUrl(file);
}

function readDataUrl(file) {
var reader = new FileReader();
reader.onloadend = function (evt) {
console.log("Read as data URL");
console.log(evt.target.result);
document.getElementById("profileimg").src = evt.target.result;
};
reader.readAsDataURL(file);
}

function fail(evt) {
console.log(evt.target.error.code);
}

</script>