表单JS弹出填写提示效果代码

<form id="form1" runat="server">
<div>
<div style="margin-top:100px">
<asp:textbox id="textbox1" runat="server" hinttitle="增加的内容信息标题" hintinfo="控制在100个字数内，标题文本尽量不要太长。"></asp:textbox></div>
</div>
</form>

<style type="text/css">
.focus
{
border: 1px solid #fc0 !important;
background: url(admin/images/focus_bg.jpg) repeat-x !important;
color: #00f !important;
}
/*提示文字样式*/
#hintmsg
{
width: 271px;
position: absolute;
display: none;
}
#hintmsg .hinttop
{
height: 9px;
background: url(admin/images/hintbg1.gif) no-repeat;
overflow: hidden;
}
#hintmsg .hintinfo
{
padding: 0 5px;
border-left: 1px solid #000;
border-right: 1px solid #000;
background: #ffffe1;
line-height: 1.5em;
}
#hintmsg .hintinfo b
{
display: block;
margin-bottom: 6px;
padding-left: 15px;
background: url(admin/images/hint.gif) left center no-repeat;
height: 13px;
line-height: 16px;
}
#hintmsg .hintinfo b span
{
display: block;
float: right;
text-indent: -9999px;
background: url(admin/images/close.gif) no-repeat;
width: 12px;
height: 12px;
cursor: pointer;
}
#hintmsg .hintfooter
{
height: 22px;
background: url(admin/images/hintbg2.gif) no-repeat;
}
</style>

$(function() {
$(".input,.login_input,.textarea").focus(function() {
$(this).addclass("focus");
}).blur(function() {
$(this).removeclass("focus");
});
//输入框提示,获取拥有hinttitle,hintinfo属性的对象
$("[hinttitle],[hintinfo]").focus(function(event) {
$("*").stop(); //停止所有正在运行的动画
$("#hintmsg").remove(); //先清除，防止重复出错
var hinthtml = "<ul id=\"hintmsg\"><li class=\"hinttop\"></li><li class=\"hintinfo\"><b>" + $(this).attr("hinttitle") + "</b>" + $(this).attr("hintinfo") + "</li><li class=\"hintfooter\"></li></ul>"; //设置显示的内容
var offset = $(this).offset(); //取得事件对象的位置
$("body").append(hinthtml); //添加节点
$("#hintmsg").fadeto(0, 0.85); //对象的透明度
var hintheight = $("#hintmsg").height(); //取得容器高度
$("#hintmsg").css({ "top": offset.top - hintheight + "px", "left": offset.left + "px" }).fadein(500);
}).blur(function(event) {
$("#hintmsg").remove(); //删除ul
});
});