js 验证不成功

来源：百度知道 编辑：UC知道 时间：2024/07/02 20:41:12
<!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>用户注册</title>
</head>

<SCRIPT language=JavaScript>

function Checkform(form){

if(form.username.value==''){
alert("用户名不能为空");
form.username.focus();
return false;
}
if(form.department.value.length>16){
alert("用户名不能超过16个字符！");
form.username.focus();
return false;
}

if(form.password.value==''

现在OK··你的错误有点多哦·

<!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>用户注册</title>
</head>

<SCRIPT language=JavaScript>

function Checkform(form){

if(form.username.value==''){
alert("用户名不能为空");
form.username.focus();
return false;
}
if(form.username.value.length>16){
alert("用户名不能超过16个字符！");
form.username.focus();
return false;
}

if(fo