Javascript和表单验证

Javascript和表单验证

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问题描述

您好,



我为注册页面创建了4个脚本:

isEmpty - 验证输入的值是否为空

isPassword - 验证输入是否正确。

isMail - 如果输入的输入正确。



And激活注册按钮以验证三个脚本。



所以我的问题是为什么HTML按钮不想激活?

我的HTML是正确的,并且正确包含了这个javascript。

我想我错了使用表单值。





Hello ,

I created 4 scripts for a sign up page :
isEmpty - verifies if the entered value is empty
isPassword - verifies if the input is correct.
isMail - if the input is entered is correct.

And activate the registration button uppon the verification of the three scripts.

So my question is why the HTML button doesn t want to activate ?
My html is correct and properly includes this javascript.
I guess i am wrong using the form values.


function isEmpty(login)
{
    var isEmptyValide;

    var val = document.formulaire.login.value;

         if( val =="")
            {
              alert("Login est vide")
              return isEmptyValide = false;
            }
       else
            {
             return isEmptyValide = true;
            }
}

function isPassword(mdp)
{
		var passwordValide;
		var a,b,c,d;
        if('A' <= a[i] && a[i] <= 'Z') // check if you have an uppercase
		    b++;
        if('a' <= a[i] && a[i] <= 'z') // check if you have a lowercase
            c++;
        if('0' <= a[i] && a[i] <= '8') // check if you have a numeric
            d++;
		if('0' <= a[i] && a[i] <= '8')

		if(b > 1 && c > 1 && d > 8)
			return passwordValide = true;
		else
			return passwordValide = false;
}


function isMail(email)
{
	var mail = document.formulaire.email.value;
	valideMail = false;
	var valide;

	for(var j=1;j<(mail.length);j++)
	{
		if(mail.charAt(j)=='@')
		{
			if(j<(mail.length-4))
			{
				for(var k=j;k<(mail.length-2);k++)
				{
					if(mail.charAt(k)=='.')
		            valideMail = true;
				}
			}
		}
	}

	if
	(valide==false)
	{
	 	alert("Veuillez saisir une adresse email valide.");
		valideMail = false;
	}
}

function valider()
{

	if(isEmptyValide == true && passwordValide == true && valideMail == true)
	{
		document.getElementById("sub").disabled = false;

	}
	else
	{
		document.getElementById("sub").disabled = true;
	}

}
}















这是我的HTML页面:










Here is my HTML page :

<!DOCTYPE html>
<html lang = "fr">
<head>
	<meta charset="utf-8" />
	<title>Formulaire</title>
	<link rel="stylesheet" type="text/css" href="style.css" media="screen" />
	<script type="text/javascript" src="valider.js"></script>
</head>
  <body>
  <header> Sign UP </header>
  <section>
  <form name='monFormulaire' action=’/php/formulaire.php’ method=’post’ >
  <td><td><td>
  <table>
    <tr>
      <th>*</th>
      <td><p>Login :</p></td>
      <td><input type='text' name='login' id='login' size='22' ></td>
      <td><input type="image" src="img/ok.ico" id='login1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='login0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <th>*</th>
      <td><p>Mot de passe :</p></td>
      <td><input type='password' name='mdp' id='mdp' size='22' ></td>
      <td><input type="image" src="img/ok.ico" id='mdp1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='mdp0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <th>*</th>
      <td><p>eMail :</p></td>
      <td><input type='text' name='email' id='email' size='32' ></td>
      <td><input type="image" src="img/ok.ico" id='email1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='email0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <th></th>
      <td><p>Date de naissance :</p></td>
      <td><input type='date' value='' name='date' id='date' /></td>
      <td><input type="image" src="img/ok.ico" id='date1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='date0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <th></th>
      <td><p>Color : </p></td>
      <td><input type='color' name='color' id='color'></td>
      <td><input type="image" src="img/ok.ico" id='color1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='color0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <th></th>
      <td><p>Avatar : </p></td>
      <td><input type='file' name='file' id='file'></td>
      <td><input type="image" src="img/ok.ico" id='file1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='file0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <th></th>
      <td><p>Radio : </p></td>
      <td><input type='radio' name='r' id='ra1' value='b1'/>
        <input type='radio' name='r' id='ra2' value='b2'/>
        <input type='radio' name='r' id='ra3' value='b3'/>
        <input type='radio' name='r' id='ra4' value='b4'/>
        <input type='radio' name='r' id='ra5' value='b5'/></td>
      <td><input type="image" src="img/ok.ico" id='r1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='r0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <th></th>
      <td><p>Selection : </p></td>
      <td><select name='sel' id='sel'>
        <option value='London'> London </option>
        <option value='Paris'> Paris </option>
        <option value='Berlin'> Berlin </option>
        <option value='Budapest'> Budapest </option>
      </select></td>
      <td><input type="image" src="img/ok.ico" id='sel1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='sel0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <th></th>
      <td><p>Text : </p></td>
      <td><textarea cols='60' rows='8' name='txt' id='txt'></textarea></td>
      <td><input type="image" src="img/ok.ico" id='txt1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='txt0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <th></th>
       <td><p>Abonnement : </p></td>
      <td><input type='checkbox' name='chbox' id='chbox'></td>
      <td><input type="image" src="img/ok.ico" id='chbox1' style="height:20px;visibility:hidden" />
        <input type="image" src="img/no.png" id='chbox0' style="height:20px;visibility:hidden" /></td>
    </tr>
    <tr>
      <td colspan='4' align='center'>
        <!--bouton submit --><input type='submit' value='Envoyer' disabled='' name='sub' id='sub' >
        <input type='reset' name='raz' id='raz' ></td>
    </tr>
    <tr>
      <td colspan='2' ><p class='italique'>* champs obligatoires</p></td>
      <td colspan='2' ><div id='info+'></div></td>
    </tr>
  </table>
  <div align='center'> </div>
	</form>
  </section>
   <nav>
   </nav>
  <footer align='center'> 	Voronitski.NET © Tous droits reserves 2014-2015</footer>
  </body>
 </html>

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08-22 22:51