Help with JavaScript Validation

[jay93]

one last issue for now is, i'm trying to make a javascript for password validation, and this is what i currently have... i'm kind of stuck now and not sure on what to do next, could you kindly check this??

this is my regvalidation.js file

function formValidation()  
{  
 
var passid = document.registration.password;  
var uname = document.registration.username;  
  
var uemail = document.registration.email;  



if(passid_validation(passid,7,12))  
{  
if(allLetter(uname))  
{  
if(ValidateEmail(uemail))  
{   
}   
}  
}    
return false;  
}  

function passid_validation(passid,mx,my)  
{  
var passid_len = passid.value.length;  
if (passid_len == 0 ||passid_len >= my || passid_len < mx)  
{  
alert("Password should not be empty / length be between "+mx+" to "+my);  
passid.focus();  
return false;  
}  
return true;  
}  


function allLetter(uname)  
{   
var letters = /^[A-Za-z]+$/;  
if(uname.value.match(letters))  
{  
return true;  
}  
else  
{  
alert('Username must have alphabet characters only');  
uname.focus();  
return false;  
}  
}  


function ValidateEmail(uemail)  
{  
var mailformat = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;  
if(uemail.value.match(mailformat))  
{  
return true;  
}  
else  
{  
alert("You have entered an invalid email address!");  
uemail.focus();  
return false;  
}  
}

and this is my registration form...

<script src="js/regvalidation.js"></script>  
onload="document.registration.userid.focus();">  
<p class="lead">REGISTER</p> 
<p>Use tab keys to move from one input field to the next.</p>  
<form action="register.php" method="post" name='registration' onSubmit="return formValidation();">  
<fieldset>
        <div class="control-group">
            <input autofocus name="username" placeholder="Username" type="text"/>
        </div>
        <div class="control-group">
            <input name="password" placeholder="Password" type="password"/>
        </div>
        <div class="control-group">
            <input name="confirmation" placeholder="Confirm password" type="password"/>
        </div>
        <div class="control-group">
            <input name="email" placeholder="Enter Email" type="text"/>
        </div>
        
        <div class="control-group">
            <input name="security" placeholder="Security Keyword" type="text"/>
        </div>
        <div class="control-group">
            <button type="submit" class="btn">Register</button>
        </div>
    </fieldset>
</form>  
<div>
    or <a href="login.php">log in</a>
</div>

[cpradio]

Okay, so from my initial testing, the only issues I found are as follows:
1) make sure onload="document.registration.userid.focus();"> is attached to a body tag
2) Add return true; inside the if (ValidateEmail(uemail)) block

function formValidation()  
{  
 
var passid = document.registration.password;  
var uname = document.registration.username;  
  
var uemail = document.registration.email;  



if(passid_validation(passid,7,12))  
{  
if(allLetter(uname))  
{  
if(ValidateEmail(uemail))  
{   
   return true;
}   
}  
}    
return false;  
}

Without the return true, even once the data passes validation, it won't submit the form. With the return true, it allows the form to submit once the validation passes.