$("#nip").change(function(e){
		e.preventDefault();
		$("#nip").keyup(function(){
		$("#pesan").html('<i class="fa fa-spinner fa-spin fa-2x fa-fw"></i> <span class="font-periksa animated infinite flash">Memeriksa Data</span> ')
		.fadeIn(600);
		});
	    var nip = $('#nip').val();

	    if (nip == "") {
	    	$(this).css('border', '');
	    	$("#pesan").hide();
	    }
	    else if (nip.match(/[a-z]/i)) {
	    	$("#pesan").show().html('<i class="fa fa-times digunakan fa-2x animated flash"></i> <span class="font-angka animated flash">Tolong Isi Dengan Angka!</span>');
		    $(this).addClass('css-gagal').val('').focus();
	    }
	    else {
		    $.ajax({
				type:"POST",
				url:"../admin-app/admin-periksa-nip-app.php",
				data: "nip="+nip,
				success: function(data){
					if(data == 0) {
					$("#pesan").show().html('<i class="fa fa-check fa-2x"></i>');
					    $('#nip').addClass('css-sukses').removeClass('css-gagal');
					}
					else {
					$("#pesan").show().html('<i class="fa fa-times digunakan fa-2x animated flash"></i> <span class="font-digunakan animated flash">NIP sudah digunakan!</span>');
					    $('#nip').addClass('css-gagal').val('');

					}
				}
		    });
		}
	});