<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<a href="javascript:void(0)" class="closeBtn" class="hidden-xs hidden-sm deleteFlightBtn" role="button" aria-disabled="false"> X</a>
<button type="button" id="ownAddFlight" class="ownAddFlight secondary secondary-gray addFlight btnAddFlight" aria-disabled="false">Add Flight</button>
</body>
</html>
<script src="./jquery-1.11.1.js"></script>
<script>
$(function(){
$(".closeBtn").keydown(function(event){
var event=event||window.event;
if(event.keyCode==13||event.which==13){
var siblingsEle=$("#ownAddFlight").siblings(".addLabel")[0];
if(!!siblingsEle==false){
$('#ownAddFlight').before("<label class='addLabel' for='ownAddFlight'>a Flight is deleted</label>");
}
}
})
$("#ownAddFlight").blur(function(){
var siblingsEle=$("#ownAddFlight").siblings(".addLabel")[0];
if(!!siblingsEle){
$(siblingsEle).remove();
}
})
})
</script>javascript