forked from jikeytang/jikeytang.github.io
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathindex.html
102 lines (100 loc) · 3.69 KB
/
index.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>限制字符串长度</title>
<link rel="stylesheet" type="text/css" href="../../css/bootstrap.min.css" media="all"/>
<link rel="stylesheet" type="text/css" href="../../css/bootstrap-theme.min.css" media="all"/>
<link rel="stylesheet" type="text/css" href="../../css/reset.css" media="all"/>
</head>
<body>
<div class="demo1">
<form class="form-horizontal user-input" id="form" role="form">
<div class="form-group">
<label for="user" class="col-sm-2 control-label">用户名</label>
<div class="col-sm-10">
<input type="text" class="form-control" id="user" maxlength="15" placeholder="用户名">
<div class="popover right"><div class="popover-content"><div class="">最多只能输入15个中文</div></div><div class="arrow"></div></div>
</div>
</div>
<div class="form-group">
<label for="password" class="col-sm-2 control-label">密码</label>
<div class="col-sm-10">
<input type="password" class="form-control" id="password" maxlength="15" placeholder="密码">
</div>
</div>
<div class="form-group">
<label for="msg" class="col-sm-2 control-label">备注</label>
<div class="col-sm-10">
<textarea class="from-control" name="" id="msg" maxlength="50" placeholder="备注" cols="47" rows="10"></textarea>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<div class="checkbox">
<label>
<input type="checkbox"> 记住我
</label>
</div>
</div>
</div>
<div class="form-group">
<div class="col-sm-offset-2 col-sm-10">
<button id="btn" type="button" class="btn btn-primary btn-block">提 交</button>
</div>
</div>
</form>
</div>
<script>
(function(){
var form = document.getElementById('form');
var input = form.getElementsByTagName('input');
var textarea = form.getElementsByTagName('textarea')[0];
var btn = document.getElementById('btn');
btn.onclick = function(){
max(textarea);
return false;
}
textarea.onfocus = function(){
}
function max(o){
var m = o.getAttribute('maxlength');
if(o.value.length >= m && o.className.indexOf('error') == -1){
error(o, '信息过长只能显示50字');
o.className += ' error';
}
}
function error(o, txt, show){
if(arguments.length == 3 && show){
o.tip && (o.tip.style.display = 'none');
} else {
if(o.className.search(/error/) == -1){
o.tip = over(o, txt);
} else {
o.tip.style.display = 'block';
}
}
}
function over(o, txt){
var pop = div('popover right');
var arr = div('arrow');
var content = div('popover-content');
content.appendChild(div('', 'p', txt));
pop.appendChild(content);
pop.appendChild(arr);
o.parentNode.insertBefore(pop, o.nextSibling);
return pop;
}
function div(cls, tag, txt){
if(!tag){
tag = cls;
}
var d = document.createElement('div' || tag);
d.className = cls;
txt && (d.innerHTML = txt);
return d;
}
}());
</script>
</body>
</html>