common use of the html input validate
- 自定义输入框检查类
- author:yuan.cheng
- date:2013-6-3
####e.g
<script language="JavaScript" type="text/javascript">
<body>
<input id="test" type="text" />
<input id="test1" type="text" />
<input id="test2" type="text" /><br />
<span id="test-err" style="display:none; background-color:#F00"></span><br />
<span id="test1-err" style="display:none; background-color:#0F0"></span><br />
<span id="test2-err" style="display:none; background-color:#00F"></span><br />
<input type="button" value="提交" onclick="check();"/>
</body>