function getrootpath() {
	var strfullpath = window.document.location.href;
	var strpath = window.document.location.pathname;
	var pos = strfullpath.indexof(strpath);
	var prepath = strfullpath.substring(0, pos);
	var postpath = strpath.substring(0, strpath.substr(1).indexof('/') + 1);
	return (prepath + postpath);
}

function rndnum(n) {
	var rand = "";
	for (var i = 0; i < n; i++)
		rand += math.floor(math.random() * 10);
	return rand;
}

function changcode(url) {
	var rand = new date().gettime();
	var str = url + 'data/include/imagecode.php?act=verifycode&random=' + rand + rndnum(4);
	$("#checkcodeimg").attr("src", str);
}

function changcode1(url) {
	var rand = new date().gettime();
	var str = url + 'data/include/imagecode.php?act=verifycode&random=' + rand + rndnum(4);
	$("#checkcodeimg1").attr("src", str);
}


$(".msgbtn").click(function () {
	var name = $(this).parents("form").find("#name");
	var contact = $(this).parents("form").find("#contact");
	var content = $(this).parents("form").find("#content");
	var checkcode = $(this).parents("form").find("#checkcode");
	switch (true) {
		case name.val() == '':
			alert("姓名不能空！");
			name.focus();
			return false;
			break;
		case contact.val() == '':
			alert("电话不能空！");
			contact.focus();
			return false;
			break;
		case content.val() == '':
			alert("对不起，您还没有留言呢！");
			content.focus();
			return false;
			break;
		case checkcode.val() == '':
			alert("验证码不能为空！");
			checkcode.focus();
			return false;
			break;
	}
	//电话号码验证

	if (contact.val().length != 11) {
		var pattern = new regexp(/^([0-9]{3,4})?[0-9]{7,8}$/);
		if (!pattern.test(contact.val())) {
			alert('请输入有效的电话号码！');
			contact.focus();
			return false;
		}
	} else {
		var pattern = new regexp(/^1[34578]+\d{9}$/);
		if (!pattern.test(contact.val())) {
			alert('手机号码格式不对');
			contact.focus();
			return false;
		}
	}


	if (checkcode.val().length != 4) {
		alert("验证码格式错误");
		return false;
	}

});
//输入框获得焦点的时候，提示内容消失

$(".m_label").click(function () {
	$(this).hide();
	$(this).siblings(".m_input").focus();
});
$(".m_input").focus(function () {
	$(this).siblings(".m_label").hide();
});
$(".m_input").blur(function () {
	if ($(this).val() == '') {
		$(this).siblings(".m_label").show();
	}
});
$(".m_input").each(function () {
	if ($(this).val() != '') {
		$(this).siblings(".m_label").hide();
	}
});