import mdm.*;
mdm.Application.init(this, onInit);
function onInit():void {
                // 启动程序...
}
quit.addEventListener(MouseEvent.CLICK,quitProgram);

function quitProgram(evt:MouseEvent):void
{
var rs:Boolean = mdm.Dialogs.promptModal("你真的要退出程序?", "yesno", "error");
if(rs)
mdm.Application.exit();
}