javascript 表单的友好用户体现

<html xmlns="http://www.w3.org/1999/xhtml" > <head> <title>test</title> <script language="javascript" type="text/javascript"> function validateLength(obj) { return obj.value.length < obj.getAttribute("maxlength"); } </script> </head> <body> <label for="userName">用户名：</label> <input id="userName" type="text" maxlength="10" onmouseover="this.focus();" onfocus="this.select();" /><br /><br /> <label for="passWord">密码：</label> <input id="passWord" type="password" onmouseover="this.focus();" onfocus="this.select();" /><br /><br /> <label for="remark">备注：</label> <textarea id="remark" onkeypress="return validateLength(this);" onmouseover="this.focus();" onfocus="this.select();" maxlength="50" cols="50" rows="5"></textarea> </body> </html>

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