Hi,

Good day!

I encountered error : 'undefined' is null or not an object when i type on my two textboxes :

Code:
echo "<label class='LLabel'> Material Barcode: </label>";
    echo "<input type='password' name='barcode' id='barcode' value='' onkeypress='get_data();' size='40' class='LField'>";
    echo "<br/><br/>";
    echo "<label class='LLabel'> Warehouse Barcode: </label>";
    echo "<input type='password' name='barcode_wh' id='barcode_wh' value='' onkeypress='get_wh()' size='40' class='LField'>";
here is my index.php
PHP Code:
<?php
    date_default_timezone_set
('Asia/Manila'); //set the time zone
    
include('includes/connection.php');
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="javascript/wms.js"> </script>
<script type="text/javascript" src="javascript/prompt.js"> </script>
<script type="text/javascript" src="javascript/notification.js"> </script>

<link rel="stylesheet" type="text/css"  href="css/prompt.css">
<link rel="stylesheet" type="text/css"  href="css/notify.css">
<link rel="stylesheet" type="text/css"  href="css/wms.css">
<title>Warehouse Barcoding</title>
</head>
<body onLoad="document.getElementById('barcode').focus();">
<form name="wms" action="" method="post">
<?php
$dateEntry 
date("Y-m-d h:i:s");
    echo 
"<div>";
    echo 
"<label class='LLabel'>DateTime: </label>";
    echo 
"<input type='text' name='date_entry' id='date_entry' value='$dateEntry' onkeypress='get_data();' size='40' class='LField' style='border:none;'>";
    echo 
"<br/><br/>";
    echo 
"<label class='LLabel'> Material Barcode: </label>";
    echo 
"<input type='password' name='barcode' id='barcode' value='' onkeypress='get_data();' size='40' class='LField'>";
    echo 
"<br/><br/>";
    echo 
"<label class='LLabel'> Warehouse Barcode: </label>";
    echo 
"<input type='password' name='barcode_wh' id='barcode_wh' value='' onkeypress='get_wh()' size='40' class='LField'>";

    echo 
"</div>";
//$barcode = '10001CHE00102401100200250000.50';
    
echo "<div id='display_data'>";
    echo 
"<table>";
    echo 
"<tr>";
    echo 
"<th>PO Number</th>";
    echo 
"<th>Unique ID</th>";
    echo 
"<th>Kind</th>";
    echo 
"<th>Item Code</th>";
    echo 
"<th>Description</th>";
    echo 
"<th>UoM</th>";
    echo 
"<th>Supplier</th>";
    echo 
"<th>Quantity</th>";
    echo 
"</tr>";
    
    echo 
"<tr>";
    echo 
"<td><input type='text' name='po_number' id='po_number' value='' readonly='readonly' disabled='disabled' class='text_field'></td>";
    echo 
"<td><input type='text' name='unique_id' id='unique_id' value='' readonly='readonly' disabled='disabled' class='text_field'></td>";
    echo 
"<td><input type='text' name='kind' id='kind' value='' readonly='readonly' disabled='disabled' class='text_field'></td>";
    echo 
"<td><input type='text' name='material_code' id='material_code' value='' readonly='readonly' disabled='disabled' class='text_field'></td>";
    echo 
"<td><input type='text' name='description' id='description' value='' readonly='readonly' disabled='disabled' class='text_field'></td>";
    echo 
"<td><input type='text' name='uom' id='uom' value='' readonly='readonly' disabled='disabled' class='text_field'></td>";
    echo 
"<td><input type='text' name='supplier' id='supplier' value='' readonly='readonly' disabled='disabled' class='text_field'></td>";    
    echo 
"<td><input type='text' name='qty' id='qty' value='' readonly='readonly' disabled='disabled' class='text_field'></td>";
    echo 
"</tr>";
    echo 
"</table>";    
    echo 
"</div>";    
    
    echo 
"<div id='display_wh'>";
    echo 
"<table>";
    echo 
"<tr>";
    echo 
"<th>Warehouse #</th>";
    echo 
"<th>Row #</th>";
    echo 
"<th>Rack #</th>";
    echo 
"<th>Level</th>";
    echo 
"</tr>";
    
    echo 
"<tr>";
    echo 
"<td><input type='text' name='whse' id='whse' value='' readonly='readonly' disabled='disabled' class='text_field_wh'></td>";
    echo 
"<td><input type='text' name='row' id='row' value='' readonly='readonly' disabled='disabled' class='text_field_wh'></td>";
    echo 
"<td><input type='text' name='rack' id='rack' value='' readonly='readonly' disabled='disabled' class='text_field_wh'></td>";
    echo 
"<td><input type='text' name='level' id='level' value='' readonly='readonly' disabled='disabled' class='text_field_wh'></td>";
    echo 
"</tr>";
    echo 
"</table>";    
    echo 
"</div>"
    
    echo 
"<input type='hidden' name='barcode_mat_data' id='barcode_mat_data' value=''>";
    echo 
"<input type='hidden' name='barcode_wh_data' id='barcode_wh_data' value=''>";
?>
</form>
</body>
</html>
and my wms.js
Code:
var loadingmessage = '<center>Getting material info ... <img src="images/loading.gif" /></center>';
function AJAX(){
    var xmlHttp;
    try{
        xmlHttp=new XMLHttpRequest(); // Firefox, Opera 8.0+, Safari
        return xmlHttp;
        }
    catch (e){
        try{
            xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); // Internet Explorer
            return xmlHttp;
            }
        catch (e){
            try{
                xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
                return xmlHttp;
                }
            catch (e){
                alert("Your browser does not support AJAX!");
                return false;
                }
            }
        }
    }
    
function notify(message) {
    if (document.getElementById('notice') !== null) {
        document.getElementsByTagName('body')[0].removeChild(document.getElementById('notice')) //>> clear the box
    }
    alerter('images/dunlop1.jpg','Warehouse Barcoding System',message);
}

function refresh(time){
 setTimeout("location.reload(true);",time);
 
}

//----barcode mat---//
function get_data(){
    if (window.event.keyCode==13 || window.event.keyCode==10) {
    var barcode_wms = document.getElementById("barcode").value;
    var divid = "display_data";
    var url = "getbarcode_data.php";
    var str = "mc=" + barcode_wms;
    var xmlHttp = AJAX();

   //alert(xmlHttp);
    xmlHttp.onreadystatechange=function(){
    //alert("test");
   /*
    if(xmlHttp.readyState > 0 && xmlHttp.readyState < 4){
      //  document.getElementById(divid).innerHTML=loadingmessage;
        }
    */    
    if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
     //   alert('test');
            var jsonart = xmlHttp.responseText;
            //jsonart = jsonart.replace(/^\s+|\s+$/g, "");
       //     alert(jsonart);
            if (jsonart.replace(/\s+/g, '') == "Invalid") {
            // alert("Invalid Barcode");
             
               notify("Invalid Material Barcode");
             //document.getElementById('barcode').value = '';
             //document.getElementById('barcode').focus();
             refresh(1500);
            }
            else
            {
              //  alert("Correct Barcode");
              
            var strsplit = jsonart.split("^");
            document.getElementById("po_number").value = strsplit[0];
            document.getElementById("unique_id").value = strsplit[1];
            document.getElementById("kind").value = strsplit[2];
            document.getElementById("material_code").value = strsplit[3];
            document.getElementById("description").value = strsplit[4] ;
            document.getElementById("uom").value = strsplit[5] ;
            document.getElementById("supplier").value = strsplit[6] ;           
            document.getElementById("qty").value = strsplit[7] ;
            document.getElementById("barcode_mat_data").value = strsplit[8] ;
            
            
            document.getElementById('barcode').disabled = true;

             document.getElementById('barcode_wh').value = '';
             document.getElementById('barcode_wh').focus();
            
            
            }
            }
        //}
    }
    }
    xmlHttp.open("POST", url, true);
    xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlHttp.setRequestHeader("Content-length", str.length);
    xmlHttp.setRequestHeader("Connection", "close");
    xmlHttp.send(str);
   // }
}
//}


//----barcode warehouse---//
//var myVar;
function get_wh(){
    if (window.event.keyCode==13 || window.event.keyCode==10) {
    var barcode_wh = document.getElementById("barcode_wh").value;
    var divid = "display_wh";
    var url = "getbarcode_wms.php";
    var str = "wh=" + barcode_wh;
    //alert(str);
    var xmlHttp = AJAX();

   //alert(xmlHttp);
    xmlHttp.onreadystatechange=function(){
   // alert("test");
   /*
    if(xmlHttp.readyState > 0 && xmlHttp.readyState < 4){
      //  document.getElementById(divid).innerHTML=loadingmessage;
        }
    */    
    if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
     // alert('tes');
            var jsonart = xmlHttp.responseText;
            //jsonart = jsonart.replace(/^\s+|\s+$/g, "");
            //alert(jsonart);
            if (jsonart.replace(/\s+/g, '') == "Invalid") {
             //alert("Invalid Barcode");
             
            // document.getElementById('barcode_wh').value = '';
            // document.getElementById('barcode_wh').focus();
               notify("Invalid Warehouse Barcode");
              // myVar=setInterval(function(){clearinterval()},1500)
             
             //refresh(1500);
             
                document.getElementById('barcode_wh').value = '';
                document.getElementById('barcode_wh').focus();

                return false;  
            }
            else
            {
              //  alert("Correct Barcode");
              var strsplit = jsonart.split("^");
             document.getElementById("whse").value = strsplit[0];
            document.getElementById("row").value = strsplit[1];
            document.getElementById("rack").value = strsplit[2];
            document.getElementById("level").value = strsplit[3];
            document.getElementById("barcode_wh_data").value = strsplit[4] ;
            
            document.getElementById('barcode_wh').disabled = true;
            
            save();
            
            
            }
            }
        //}
    }
    }
    xmlHttp.open("POST", url, true);
    xmlHttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
    xmlHttp.setRequestHeader("Content-length", str.length);
    xmlHttp.setRequestHeader("Connection", "close");
    xmlHttp.send(str);
   // }
}
//}

//----save---//
 function save() {
 var myVar;    
  ajaxRequest = AJAX();
    ajaxRequest.onreadystatechange=function() {

    if (ajaxRequest.readyState==4 && ajaxRequest.status==200)
    {
            //alert('test');
       var result = ajaxRequest.responseText;
         //alert();
        //  alert (result);

           if (result == "failed")
           {
            document.getElementById('barcode_wh').disabled = false;
            document.getElementById('barcode_wh').value = "";
            document.getElementById('barcode_wh').focus();
            notify("Please scan again.");
           }

           else (result == "saved|saved" || result == "saved|saved|saved" || result == "saved|saved|saved|saved" ||result == "saved|saved|saved|saved|saved" || result == "saved|saved|saved|saved|saved|saved" || result == "saved|saved|saved|saved|saved|saved|saved")
           {
              notify("Transaction has been saved");
              //window.setTimeout("clearinterval();",2000);
             // myVar=setInterval(function(){clearinterval()},2000)
             refresh(1500);

           }

       }
    }
    
             var unique_id = document.getElementById('unique_id').value;   
             var date_entry = document.getElementById('date_entry').value;
             var po_number = document.getElementById('po_number').value;    
             var kind = document.getElementById('kind').value;
             var barcode_mat_data = document.getElementById('barcode_mat_data').value;     
             var barcode_wh_data = document.getElementById('barcode_wh_data').value;
             var qty = document.getElementById('qty').value;
                   
             var parameters = "&unique_id="+unique_id+"&date_entry="+date_entry+"&po_number="+po_number+"&kind="+kind+"&barcode_mat_data="+barcode_mat_data+"&barcode_wh_data="+barcode_wh_data+"&qty="+qty;
             
             alert(parameters);

var url = "centralPost_barcode_wms.php";
ajaxRequest.open("POST", url, true);
//ajaxRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded; charset=UTF-8");
ajaxRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
ajaxRequest.setRequestHeader("Content-length", parameters.length);
ajaxRequest.setRequestHeader("Connection", "close");
ajaxRequest.send(parameters);
}
and my getbarcode_data.php
PHP Code:
<?php
include("includes/connection.php");
if(
$_POST["mc"])
 {
    
$barcode $_POST['mc'];
    
$po_number substr($barcode05);  
    
$item_code substr($barcode56);  
    
$supplier substr($barcode113);  
    
$uom substr($barcode142); 
    
$unique_id substr($barcode166); 
    
$qty substr($barcode22);   
    
$query "SELECT mat_id, supplier_id, uom_id ";
    
$query .= "FROM check_info ";
    
$query .= "WHERE mat_id = '$item_code' AND supplier_id = '$supplier' AND uom_id = '$uom'";
    
$result mysql_query($query);
    
$cnt mysql_num_rows($result);
    
$invalid 'Invalid';
    if(
$cnt==0)
    {
        
$str trim(preg_replace('/\s+/',' '$invalid));
        echo 
$str;
        }
    else
    {
        
//echo "Correct";
        
$query_info "SELECT d.kind, m.mat_id, d.item_code, d.supplier_code, d.dspi_uom, o.uom_id, s.supplier_id, d.supplier ";
    
$query_info .= "FROM data_upload AS d JOIN raw_material AS m ON (m.item_code = d.item_code) JOIN uom_list AS o ON (d.dspi_uom = o.uom) ";
    
$query_info .= "JOIN supplier AS s ON (s.supplier_name = d.supplier) "
    
$query_info .= "WHERE m.mat_id = '$item_code' AND s.supplier_id = '$supplier' AND o.uom_id = '$uom'";
    

    
$result_info mysql_query($query_info);

    
    if(
$row mysql_fetch_array($result_info))
    {
    
       
// echo $po_number . "^" . $unique_id . "^" . $row["kind"] . "^" . $row["item_code"] . "^" . $row["supplier_code"] . "^" . $row["dspi_uom"] . "^" . 
       // $row["supplier"] . "^" . $qty;
       
echo($po_number "^" $unique_id "^" $row["kind"] . "^" $row["item_code"] . "^" $row["supplier_code"] . "^" $row["dspi_uom"] . "^" $row["supplier"] . "^" $qty "^" .$barcode);
    }

    }
 }
   
// exit;
and getbarcode_wms.php
PHP Code:
<?php
include("includes/connection.php");
if(
$_POST["wh"])
{
    
$barcode_wh $_POST['wh'];
    
$result mysql_query("SELECT whse, row, rack, level FROM warehouse WHERE id = '$barcode_wh'");
    
    
$cnt mysql_num_rows($result);
    
$invalid 'Invalid';
    if(
$cnt==0)
    {
        
$str trim(preg_replace('/\s+/',' '$invalid));
        echo 
$str
    }
    else
    {
    if(
$row mysql_fetch_array($result))
    {
        echo 
$row["whse"] . "^" $row["row"] . "^" $row["rack"] . "^" $row["level"] . "^" $barcode_wh 
    }
    }
}
I can't find what is the cause of that error when i type on Material Barcode also in Warehouse Barcode.

I hope somebody can help me to resolve this error.

Thank you so much.