function showLoader() {
	$("#result").html("<div align='center'><img src='theme/images/load.gif'><small><b> Loading...</b></small></div>");
	$("#result").hide().fadeIn("slow");
	block = true;
}
function showResult(data) {
	$("#result").html(data);
	$("#result").hide().fadeIn("slow");
	block = false;
}
var block = false;
$("#a_form").submit(function() {
	if (block) return false;
	var id = $("#a_id").val();
	if (id=='Yahoo ! ID') {
		alert('Please enter yahoo id');
		return false;
	}
	showLoader();
	$.ajax({
		url: 'class.detect.php',
		type: 'POST',
		data: {type:'a', a_id:id},
		success: function(data){
			showResult(data);
		}
	});
	return false;
});