Morning, and greeting to all~
I'm building a registeration form for a forum
i got 3 input : User Name, password, and email
In this case i use ajax to do the duplicate validation check
once the registering user entered a name or email that has been took by other ppl
it will run the validation and show some message like "valid username" "duplicate username"
but i got a problem which is i dono how to disable the "Register" button while the validation showing "Duplicate username" and user ignore the message.
here my code (if you need it): php [form]
<?php
include 'dbconn.php';
include 'Header.php';
if(isset($_COOKIE['Author']))
{
echo "<div id='Display'>";
echo "You already have an account!</div>";
}
else
{
echo "<form name='frmRegisteration' action='Register.php' method='post' onSubmit='return DataValidator()'>";
$name = $_POST['txtname'];
$password = $_POST['txtpasswd'];
$email = $_POST['txtemail'];
if(isset($name,$password,$email))
{
$qry_insertauthor = "INSERT INTO author (user_name,passwd,email) VALUES ('".$name."','".$password."','".$email."')";
$arr_insertauthor = mysql_query($qry_insertauthor);
}else{
echo "<div id='Display'>";
echo "<em> </em>Please fullfill all the information required below : </div>";
}
echo "<div id='Register' style='margin-top:10px;'><table width='100%'>
<tr><td width='15%'><em>Name :</em><br /></td><td><input name='txtname' id='regName' size='25' onKeyUp='UserValidate(this.value)' onBlur='Disablebutton(document.getElementById('txterror').value)'/>
<label id='txterror'>* Please Enter your name here</label></td></tr>
<tr><td><em>Password :</em><br /></td><td><input type='password' name='txtpasswd' id='regPasswd' size='25' maxlength='15' /></td></tr>
<tr><td><em>E-mail :</em><br /></td><td><input name='txtemail' id='regEmail' size='25' onKeyUp='emailValidate(this.value)' />
<label id='txterror2' on>* Please Enter your email here</label></td></tr></table>
<em> </em><input type='submit' name='btnRegister' id='regbtnRegister' value='Register'/></form>
</div><input type='hidden' id='Receiver'>";
}
include'Footer.php';
?>Java
function UserValidate(name)
{
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
result=xmlhttp.responseText;
document.getElementById("Receiver").innerHTML= result;
}
}
xmlhttp.open("GET","RegisterAJAX.php?Name="+name,true);
xmlhttp.send();
}
function emailValidate(email)
{
if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("Receiver").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","RegisterAJAX.php?Email="+email,true);
xmlhttp.send();Ajax
<?php include("dbConn.php") ?>
<?php
if(isset($_GET["Name"])){
$name=$_GET["Name"];
$qry_getname = "SELECT COUNT(user_name) FROM author WHERE user_name='".$name."'";
$arr_getname = mysql_query($qry_getname);
$result = mysql_fetch_assoc($arr_getname);
if($result['COUNT(user_name)'] >=1)
{echo " *The name were duplicated! Please Re-Enter another name.";
echo " *Disabled";
}else{ echo " *Valid User Name.";}
}
else if(isset($_GET["Email"])){
$email=$_GET["Email"];
if(eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$", $email)) {
$qry_getemail = "SELECT COUNT(email) FROM author WHERE email='".$email."'";
$arr_getemail = mysql_query($qry_getemail);
$result = mysql_fetch_assoc($arr_getemail);
if($result['COUNT(email)'] >=1)
{echo " *The email were duplicated! Please Re-Enter another E-mail Address.";
echo " *Disabled";
}else{ echo " *Valid Email.";}
}
else{ echo " *Your Email Format Are Invalid !";
echo " *Disabled";}
}
?>Please Help i already stuck in this probelm for 4 days!
i'm a newbie and my senior don't give a hand Thank you sososo much foe help in advanced!