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<!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>验证银行账号</title><style type="text/css"><!--.STYLE1 {color: #FF0000}--></style><script language="javascript" type="text/javascript">function check(){var account = document.form1.account.value;var reg = /^\d{19}$/g; // 以19位数字开头,以19位数字结尾if( !reg.test(account) ){ alert("格式错误,应该是19位数字!");}else{ alert("验证成功!");}}</script></head><body><form id="form1" name="form1" method="post" action=""><p>账号: <input type="text" name="account" id="account" />&nbsp; <span class="STYLE1">* (19位数字)</span></p><p>&nbsp; &nbsp;&nbsp; <input type="button" name="button" id="button" value="验证" /></p></form></body></html> |
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