/**
 * @author wuweiliang
 */
var isemail = function(email){
    var reg = /([\w|_|\.|\+]+)@([-|\w]+)\.([A-Za-z]{2,4})/;
    return reg.test(email);
}
var s = function(){
	var email = $.trim($('#email').val());
	var username = $.trim($('#username').val());
	var title = $.trim($('#title').val());
	var tel = $.trim($('#tel').val());
	var company = $.trim($('#company').val());
	var content = $.trim($('#content').val());
	$('#error').hide();
	//alert(username);
	if(!username){
	    //alert(username);
		$('#error').html(lang.usernameEmpty);
		$('#error').show();
		return ;
	}
	if(!content){
		$('#error').html(lang.contentEmpty);
		$('#error').show();
		return ;
	}
	
	if(email){
		if (!isemail(email)) {
			$('#error').html('Email is error');
			$('#error').show();
			return;
		}
	}
	$('#s').attr('disabled','true');
	$('#error').html('submiting...');
	$('#error').show();
	//alert(username);
	$.post('feedback.php',
		{ username: username, email: email ,title: title, tel: tel,company: company, content:content},
		function(data){
			if($.trim(data) =='succeed'){
			    r();
				$('#error').html('succeful');
				return;
			}else{
                $('#error').html(lang[data]);
				$('#s').attr('disabled',false);
				$('#s').val('save');
			}
		}
	)
}

var lang = {
	usernameEmpty : 'Username is empty',
	contentEmpty : 'Content is empty',
	succeed : 'Succeful，Thank's for you feedback'
}
var r = function(){
	$('#email').val('');
	$('#username').val('');
	$('#title').val('');
	$('#tel').val('');
	$('#company').val('');
	$('#content').val('');
}