document.writeln('<form action="https://u.hws.com/api/help/gb.asp?id=1625" method="post" name="comment" onSubmit="return chkgbdata()">');
document.writeln('	<span class="c23">留言标题：<input type="text" name="title"></span>');
document.writeln('	<span class="c21">');
document.writeln('		留言内容：<textarea name="content" placeholder="请勿填写非法内容，感谢您的支持！"></textarea><br />');
document.writeln('		您的邮箱：<input type="text" name="mail"><i>选填，有回复时将邮件通知您</i>');
document.writeln('	</span>');
document.writeln('	<span class="c22"><input type="submit" name="b1" value="发表" /></span>');
document.writeln('</form>');


function chkgbdata()
	{
		if(document.comment.content.value.length<2)
			{
				alert("请填写留言内容。");
				document.comment.content.focus();
				return false;
			}
		if(document.comment.mail.value.length>0 && document.comment.mail.value.indexOf("@")==-1)
			{
				alert("请正确填写电子邮件地址。");
				document.comment.mail.focus();
				return false;
			}
		return true;
	}