带提示信息ajax表单验证实例_网站常用

内容介绍

一个ajax表单验证实例，当用户鼠标点击输入框时在右边弹出提示信息，可根据自己的需求来自定义。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>网页特效 带提示Ajax表单验证实例 B5教程网</title>
<style type="text/css">
form {
	width:500px;
	border:1px solid #ccc;
}
fieldset {
	border:0;
	padding:10px;
	margin:10px;
	position:relative;
}
label {
	display:block;
	font:normal 12px/17px verdana;
}
input {width:160px;}
span.hint {
	font:normal 11px/14px verdana;
	background:#eee;
	color:#444;
	border:1px solid #888;
	padding:5px 5px 5px 40px;
	width:250px;
	position:absolute;
	margin: -12px 0 0 14px;
	display:none;
}
fieldset.welldone span.hint {
	background:#9fd680;
	border-color:#749e5c;
	color:#000;
}
fieldset.kindagood span.hint {
	background:#ffffcc;
	border-color:#cc9933;
}
fieldset.welldone {
	background:transparent;
}
fieldset.kindagood {
	background:transparent;
}
</style>
<script type="text/javascript">
function checkuser_zzjs(whatYouTyped) {
	var fieldset = whatYouTyped.parentNode;
	var txt = whatYouTyped.value;
	if (txt.length > 5) {
		fieldset.className = "welldone";
	}
	else {
		fieldset.className = "";
	}
}
function checkps_zzjs(whatYouTyped) {
	var fieldset = whatYouTyped.parentNode;
	var txt = whatYouTyped.value;
	if (txt.length > 3 && txt.length < 8) {
		fieldset.className = "kindagood";
	} else if (txt.length > 7) {
		fieldset.className = "welldone";
	} else {
		fieldset.className = "";
	}
}
function checkemail_zzjs(whatYouTyped) {
	var fieldset = whatYouTyped.parentNode;
	var txt = whatYouTyped.value;
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(txt)) {
		fieldset.className = "welldone";
	} else {
		fieldset.className = "";
	}
}
function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}
function prepareInputsForHints() {
  var inputs = document.getElementsByTagName("input");
  for (var i=0; i<inputs.length; i++){
    inputs[i].onfocus = function () {
      this.parentNode.getElementsByTagName("span")[0].style.display = "inline";
    }
    inputs[i].onblur = function () {
      this.parentNode.getElementsByTagName("span")[0].style.display = "none";
    }
  }
}
addLoadEvent(prepareInputsForHints);
</script>
</head>
<body>
<form action="#" name="basicform" id="basicform" >
<fieldset>
	<label for="username">用户名:</label>
	<input type="text" id="username" onkeyup="checkuser_zzjs(this);" />
	<span class="hint">B5教程网提示您，用户名最低6位哦！</span>
</fieldset>
<fieldset>
	<label for="password">密码:</label>
	<input type="password" id="password" onkeyup="checkps_zzjs(this);" />
	<span class="hint">B5教程网提示您，密码需要4到8位哦！</span>
</fieldset>
<fieldset>
	<label for="email">Email地址:</label>
	<input type="text" id="email" onkeyup="checkemail_zzjs(this);" />
	<span class="hint">B5教程网提示您，请正确输入邮箱地址！</span>
</fieldset>
</form>

<div style="font-size:14px; clear:both; width:700px; margin:0 auto; text-align:center">
    <p >代码整理：<a href="http://www.bcty365.com" title="B5教程网"  style="color:#FF0000" alt="B5教程网">B5教程网</a></p>
    <p>＊尊重他人劳动成果，转载请自觉注明出处！注：此代码仅供学习交流，请勿用于商业用途。</p>
    <p></p>
</div>
</body>
</html>

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带提示信息ajax表单验证实例

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