if you know a easy way to do it i will appreciate that

@import QtQuick 2.2
import QtQuick.Window 2.0
import QtQuick.Controls 1.1

Rectangle {
id: container;
width: 700
height: 700

function randomscales()
{
    var scalesArray = [1, 1,1, 1.1, 0.9, 1.2, 0.8,0.7]
    var randomNumber;
    var actualStateNumber
    do{
        randomNumber = Math.floor(Math.random()*scalesArray.length);
    }
    while (randomNumber == actualStateNumber);
    actualStateNumber = randomNumber;
    return scalesArray[randomNumber];
}

Timer{
    id: count1
    interval: 500
    running: true
    repeat: true
    onTriggered: {
        scaleAnimation.start()
        randomscales.start()
    }
}

Image {
    id: flor;
    source: "flor.png";
    x: 100
    y: 100
    scale: 1

    transform: Scale {
        id: scaleTransform
        property real scale: 1
        xScale: scale
        yScale: scale
        origin.x: 96
        origin.y: 104
    }

    SequentialAnimation {
        id: scaleAnimation
        loops: 1
        PropertyAnimation {
            target: scaleTransform
            properties: "scale"
            to: randomscales()
            duration: 500
        }
    }
}

}
@