Form with xmlhttp submits every time it loads.

[matthewst]

I have a form that submits to itself (I know it should submit to a handler but that's the way it was when I took over.). I've had to add a dynamic dropdown menu to the page. The dropdown works like it should except now the page submits every time it loads.

 

<?
include('include/user_check.php');
include('include/db_con.php');
$id = $_SESSION['track_id'];
$dest_email='[email protected]';
set_time_limit ( 0 );
//error_reporting(E_ALL);

if($_POST['submit']) {

 

blah blah php stuff

 

javascript

var xmlhttp;

function showUser(str)
{
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Browser does not support HTTP Request");
  return;
  }
var url="get_quote_num.php";
url=url+"?q="+str;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function stateChanged()
{
if (xmlhttp.readyState==4)
{
document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
}
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}

 

start of form

<form action="<?=$PHP_SELF;?>" method="post" enctype="multipart/form-data" name="FormName" onSubmit="MM_validateForm('company','','R','address','','R','city','','R','RisNum','phone','','R','size','','R','ad_num','','R','quote_num','','R');return document.MM_returnValue;return Form1_Validator(this)">

 

new dropdown (the disabled dropdown is replaced by the working one once a selection is made in another menu

[/code]<td>

                                           

                                            <div id="txtHint">

                                            <select name='quote_num' class='formTextbox' size='1' disabled='disabled'>

                                                <option value=''>Select from other dropdown first</option>

                                                </select>

                                                </div>

                                            </td>[/code]

 

get_quote_num.php page

<?php
$q=$_GET["q"];
include('include/db_con.php');
<select>
blah blah this works fine
</select>

 

back to the form

<input type="submit" class="formTextbox" name="submit" value="Submit">

 

It doesn't submit when I use the dropdowns. Only when it loads. When I actually click the submit button it submits twice!

[matthewst]

As it turns out I'm an idiot. After checking the database and NOT seeing a billion new records I realized it was just sending me the notification email. So, I moved mail() to the inside of my if($_POST brackets. All is now right with the world.