I took a working program and modified it to use different values and can't seem to make it work now. I want have the datepaid, pd & paidsum insert when I key in the amtpaid .
Code:
<html><head>
<!--when the paidamt is keyed in, the current date, pd & paidsum are autoinserted-->
<script>
function $_(IDS) { return document.getElementById(IDS); }
function calculate_paid() {
   var invnum = document.getElementById("invnum");
   var ordernum = document.getElementById("ordernum");
   var bname = document.getElementById("bname");
   var charges = document.getElementById("charges");
   var paidamt = document.getElementById("paidamt");
   var tax = document.getElementById("tax");
   var datepaid = document.getElementById("datepaid");
   var pd = document.getElementById("pd");
   var paidsum = document.getElementById("paidsum");
<!--********************set up date**********************-->
  var dateNow = new Date();
  var dayNow = dateNow.getDate();
  var datePaid = (dateNow.getMonth()+1)+"/"+dateNow.getDate()+"/"+dateNow.getFullYear();
datepaid.value = datePaid;
<!--end date setup-->
<!--accumulate charges into paidsum, calculate tax, set up pd & calculate dayslate (?)--> 
charges.value = parseFloat(charges.value);
paidsum.value = parseFloat(paidsum.value) + parseFloat(paidamt.value);
tax.value= parseFloat(charges.value) * .06;
pd.value = "P";
<!--********************* end of calcs ******************-->
</script>
<script type="text/javascript">
window.google_analytics_uacct = "UA-256751-2";
</script>
<script type="text/javascript">
window.google_analytics_uacct = "UA-256751-2";
</script>
</head><body>
PHP Code:
<?php
mysql_connect
(localhost,root,"");
mysql_select_db(oodb) or die( "Unable to select database");
if(!empty(
$_POST["submit"]))
{
$invnum $_POST['invnum'];
$query="SELECT * FROM oocust Where invnum='$invnum'";
$result=mysql_query($query);
if(
mysql_num_rows($result))
{
echo 
"<form action='#' method='post'><b>Invoice Payment :<br /><br />
<table cellspacing=0 cellpadding=0 border=1>
    <tr>
  <th>Inv#</th>
  <th>ord#</th>
  <th>Name</th>
  <th>Description</th>
  <th>Paid</th>
  <th>Charges</th>
  <th>Date Paid</th>
  <th>Pd</th>
  <th>Total</th>
      </tr>"
;
while(
$row mysql_fetch_assoc($result))
{
 echo 
"<tr>
<td><input type='text' size=5 name='invnum' value='" 
$row['invnum'] . "'></td>
<td><input type='text' size=5 name='ordernum' value='" 
$row['ordernum'] . "'></td>
<td><input type='text' size=25 name='bname' value='" 
$row['bname'] . "' ></td>
<td><input type='text' size=25 name='descr' value='" 
$row['descr'] . "' ></td>
<td><input type='text' size=7 id='paidamt' name='paidamt' value='" 
$row['paidamt'] ."' 
onBlur='calculate_paid(this)'></td>
<td><input type='text' size=7 id='charges' name='charges' value='" 
$row['charges'] ."'
onBlur='calculate_paid(this)'></td>
<td><input type='text' size=10 id='datepaid' name='datepaid' value='" 
$row['datepaid'] . "'></td>
<td><input type='text' size=1 id='pd' name='pd' value='" 
$row['pd'] . "'></td>
<td><input type='text' size=7 name='paidsum' value='" 
$row['paidsum'] . "' ></td>   
</tr>"

}
echo 
"</table>
<input type='submit' name='update' value='Make Payment' />
</form>"
;
}
else{echo 
"No listing for invoice# $invnum.<br />Please select another.<br />";}
}
if(!empty(
$_POST["update"]))
{
$sql "UPDATE payments SET
invnum = '" 
mysql_real_escape_string($_POST['invnum']) . "',
ordernum = '" 
mysql_real_escape_string($_POST['ordernum']) . "',
bname = '" 
mysql_real_escape_string($_POST['bname']) . "',
descr = '" 
mysql_real_escape_string($_POST['descr']) . "',
paidamt = '" 
mysql_real_escape_string($_POST['paidamt']) . "',
charges = '" 
mysql_real_escape_string($_POST['charges']) . "',
datepaid = '" 
mysql_real_escape_string($_POST['datepaid']) . "',
pd = '" 
mysql_real_escape_string($_POST['pd']) . "',
paidsum = '" 
mysql_real_escape_string($_POST['paidsum']) . "'
WHERE invnum='"
.$_POST["invnum"]."'";
mysql_query($sql) or die("Update query failed.");
echo 
"Record for invoice ".$_POST["invnum"]." has been updated";
}
?>
Code:
<form method="post" action="#">
<br />
<input type="text" name="invnum"/> <p>
<input type="submit" name="submit" value="select inv#"/>
</form>
<script type="text/javascript"><!--
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
//-->
</script>
<script type="text/javascript"><!--
try {
var pageTracker = _gat._getTracker("UA-256751-2");
pageTracker._trackPageview();
} catch(err) {}
//-->
</script>
<script type="text/javascript"><!--
var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
//-->
</script>
<script type="text/javascript"><!--
try {
var pageTracker = _gat._getTracker("UA-256751-2");
pageTracker._trackPageview();
} catch(err) {}
//-->
</script>
</body></html>