Javascript验证不能在html注册表格中工作

我正在使用php mysql进行用户注册。我已经添加了javascript验证来检查是否有任何字段是空白的。但表单验证不起作用。形式是Javascript验证不能在html注册表格中工作

<?php 
include("header.php"); 
include ("includes/mainmenu.php"); 
?> 


<!--Javasript Validation File Import --> 
<script type="text/javascript" src="js/validation.js"></script> 
<script type="text/javascript" src="js/formreg.js"></script> 
<script type="text/javascript" language="JavaScript"> 

function HidePart(d) { document.getElementById(d).style.display = "none"; } 
function ShowPart(d) { document.getElementById(d).style.display = "block"; } 
function CheckboxChecked(b,d) 
{ 
    if(b) { ShowPart(d); } 
    else { HidePart(d); } 
} 
</script> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<!--<link rel="stylesheet" type="text/css" href="styles/styles.css" />--> 
<link href="styles/form.css" rel="stylesheet" type="text/css"> 
<link href="styles/structure.css" rel="stylesheet"> 
<link href="styles/bootstrap.css" rel="stylesheet"> 

</head> 

<body onLoad="document.registration.userid.focus();"> 
<br> 
<div id="container" class="ltr"> 
    <header id="header" class="info"> 
<h2>User Registration</h2> 
</header> 
    <form action="insert.php" method="post" name="regForm" onSubmit="return valide()"> 


      <ul> 

      <li id="foli0" class="notranslate"> 
      <label class="desc" id="title0" for="Field0">Name</label> 
      <span><input id="fname" type="text" name="fname" class="field text1 fn" size="50"/></span><span>Please Enter Your full Name</span> 
      </li> 

      <li id="foli0" class="notranslate"> 
      <label class="desc" id="title0" for="Field0">Username</label> 
      <span><input id="Field0" type="text" name="usernamename" class="field text1 fn" size="50" /></span> 
      </li> 

      <li id="foli0" class="notranslate"> 
      <label class="desc" id="title0" for="group">Educational Background</label></td> 
      <span><select id="Field0" class="field text1 fn" name="background" size="0"> 
       <option selected="0" value="">select your Background</option> 
       <option value="Science">Science</option> 
       <option value="Humanities">Humanities</option> 
       <option value="Commerce">Commerce</option> 
       </select></span><span>Enter your HSC Background</span> 
      </li> 

      <li id="foli0" class="notranslate"> 
      <label class="desc" id="title0" for="Field0">Date of Birth</label> 
      <span><input id="Field0" type="date" name="birth" class="field text1 fn" size="50"/></span><span>Enter your date of Birth</span> 
      </li> 

      <li id="foli0" class="notranslate"> 
      <label class="desc" id="title0" for="Field0">Password</label> 
      <span><input id="Field0" type="password" name="password" class="field text1 fn" size="50" /></span><span>Enter your password</span> 
      </li> 

      <li id="foli0" class="notranslate"> 
      <label class="desc" id="title0" for="Field0">Password</label> 
      <span><input id="Field0" type="password" name="conpassword" class="field text1 fn" size="50" /></span><span>Enter your password again</span> 
      </li> 

      <li id="foli0" class="notranslate"> 
      <label class="desc" id="title0" for="Field0">Email</label> 
      <span><input id="Field0" type="text" name="email" class="field text1 fn" size="50" /></span><span>Enter a valid email address</span> 
      </li> 
      <li class="buttons "> 
      <div> 

        <input id="submit" name="submit" class="btn" type="submit" value="Complete Registration"/></div> 
      </li> 

      </ul> 
     </form> 



      </div> 


<?php 
include("includes/footer.php"); 
?>

和验证JavaScript代码

function valide() 
{ 
var fname=document.forms["regForm"]["fname"].value; 
var username=document.forms["regForm"]["username"].value; 
var subject = document.forms["regForm"]["background"].value; 
var password=document.forms["regForm"]["password"].value; 
var conpassword=document.forms["regForm"]["conpassword"].value; 
var email=document.forms["regForm"]["email"].value; 
var atpos=email.indexOf("@"); 
var dotpos=email.lastIndexOf("."); 


if (fname==null || fname=="" || fname.length<7) 
    { 
    alert("Please provide Your full name"); 
    return false; 
    } 

else if (username==null || username=="") 
    { 
     if(username.length<6) 
     { 
      alert("Username must contains atleast 6 charecters"); 
     } 
     else 
    alert("Please provide a username"); 
    return false; 
    } 
else if(subject==null || subject == "") 
    { 
     alert("Enter Background"); 
     return false; 
     } 
else if (password==null || password=="") 
    { 
     if(password.length<8) 
     { 
      alert("Password must contain atleast 8 charecters"); 
      } 
      else 
    alert("Please insert your password"); 
    return false; 
    } 
    else if (conpassword != password) 
    { 
    alert("Confirm password doesn't match"); 
    return false; 
    } 

else if (email==null || email=="") 
    { 
    alert("Email must be filled out."); 
    return false; 
    } 

else if (atpos <1 || dotpos <atpos+2 || dotpos + 2 >= email.length) 
    { 
    alert("Not a valid e-mail address"); 
    return false; 
    } 
}

请帮助我。

来源

2013-04-06 Muntashir Are Rahi

所以有什么实际问题？什么不行？ – FeRtoll 2013-04-06 20:45:18

让我们来看看你的函数的Valide（）

它有一些错误，但不会返回真正时候，一切都OK了...

因为它不返回true，形式是未提交...

这里是一个修正版本：

function valide(){ 
var fname=document.forms["regForm"]["fname"].value; 
var username=document.forms["regForm"]["username"].value; 
var subject = document.forms["regForm"]["background"].value; 
var password=document.forms["regForm"]["password"].value; 
var conpassword=document.forms["regForm"]["conpassword"].value; 
var email=document.forms["regForm"]["email"].value; 
var atpos=email.indexOf("@"); 
var dotpos=email.lastIndexOf("."); 


// Let me warn you: 
// There are many many people with names less than 7 characters 

if (fname==null || fname=="" || fname.length<7) { 
    alert("Please provide Your full name"); 
    return false; 
} // if returned so else is not required 

if (username==null || username==""){ 
    if(username.length<6){ 
      alert("Username must contains atleast 6 charecters"); 
    } else 
      alert("Please provide a username"); 
    return false; 
} // if returned so else is not required 

if(subject==null || subject == ""){ 
    alert("Enter Background"); 
    return false; 
} // if returned so else is not required 

if (password == null || password==""){ 
    // length = 0 or password is null here so: 
    // if(password.length<8) is unnecessary 
    if(password == ""){ 
      alert("Password must contain at least 8 charecters"); 
    } else 
      alert("Please insert your password"); 
    return false; 
} // if returned so else is not required 

if (conpassword != password){ 
    alert("Confirm password doesn't match"); 
    return false; 
} // if returned so else is not required 

if (email==null || email==""){ 
    alert("Email must be filled out."); 
    return false; 
} // if returned so else is not required 

if (atpos <1 || (dotpos <atpos+2) || (dotpos + 2 >= email.length)){ 
    alert("Not a valid e-mail address"); 
    return false; 
} // if returned no else needed. 

// and now this function should return: 
return(true); 
}

来源

2013-04-06 21:11:12 Ihsan

Javascript验证不能在html注册表格中工作

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