var mouseOver = false;
var pressed = false;

function button_MouseLeftButtonDown(sender,args) {
    sender.captureMouse();
    mouseOver = true;
    pressed = true;
    updateVisuals(sender);
}

function button_MouseLeftButtonUp(sender,args) {
    sender.releaseMouseCapture();
    pressed = false;
    
    updateVisuals(sender);
    
    if (mouseOver) {
        getXML(stage);
    }
}

function button_MouseEnter(sender,args) {
    mouseOver = true;
    updateVisuals(sender);
}

function button_MouseLeave(sender,args) {
    mouseOver = false;
    updateVisuals(sender);
}

function updateVisuals(sender) {
    //background
    if (mouseOver || pressed) {
        sender.findName("button_highlight").opacity = 1;
    } else {
        sender.findName("button_highlight").opacity = 0;
    }
}