Toggle button

[Lahearle]

Hello I have ran into another problem, here is my code:

RoundButton {
id: browserB
x: 7
y: 144
width: 66
height: 66
text: ""
flat: true
icon.height: 66
icon.width: 66
icon.source: "TestGUI/eyetemp.png"
display: AbstractButton.IconOnly

    Rectangle {
        id: browserPullMenu
        anchors.left: parent.right
        width: 180
        height: 66
        visible: false
    }

    Connections {
        target: browserB
        onClicked: { 
            browserB.toggle() 
            integratedBrowser.visible
            console.log("clicked")
               }   
    }
}

How do I make the browserB(button) toggle the integratedBrowser.visible?
I can make it visible, can't seem to toggle the visibility off.