[Resolved] Refreshing

[iagal]

I'm finding many threads on refreshing when using "BACK" or "REFRESH" however my question is getting it to refresh when you hit the "reset" button.

Here's what I have:
<form action="calculator.html" method="post">
<center><table cellpadding="2" cellspacing="2">
<tr> <td><input type="text" name="sample1" size=10 maxlength=10 value=<?php echo $POST['sample1'] ?>> </td>
<td><input type="text" name="sample2" size=10 maxlength=10 value=<?php echo $POST['sample2'] ?>> </td>
<td><input type="text" name="sample3" size=10 maxlength=10 value=<?php echo $POST['sample3'] ?>> </td>
<td><input type="text" name="sample4" size=10 maxlength=10 value=<?php echo $POST['sample4'] ?>> </td>
<td><input type="text" name="sample5" size=10 maxlength=10 value=<?php echo $_POST['sample5'] ?>> </td> </tr>
</table></center>

	<br><br>
	<center>Press the calculate button: <input type=submit name=submit value="Calculate"> or <input type="reset" value="Reset"></center>
	<br><br>
	<center>Here is the geometric mean to be reported on the MOR: <?php echo pow($_POST['sample1'] * $_POST['sample2'] * $_POST['sample3'] * $_POST['sample4'] * $_POST['sample5'], 0.2) ?></center>
	</form>

When they press "reset" I want all values to return back to null and thus be empty. Might anyone have any ideas?

I've already tried:
<meta http-equiv="expires" content="0">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="pragma" content="no-cache">

[dnoonan]

well, since you're assigning values to your form a simple html reset will not work. You have 2 options, 1) have the reset button submit the form and then clear the vars and redisplay or 2) use javascript to clear out the form. I'd reccommend #2 but if you don't know javascript this might be a bit daunting....

example (option 1):
I've changed the reset button to be type "button" and named it query. If they click it query will be equal to "Reset".

<?php

if (@$_POST['query'] == 'Reset') {
   // clear your vars
   $_POST['sample1'] = $_POST['sample2'] = '';  // etc
}

?>
<form action="calculator.html" method="post"> 
<center><table cellpadding="2" cellspacing="2"> 
<tr> <td><input type="text" name="sample1" size=10 maxlength=10 value=<?php echo $_POST['sample1'] ?>> </td> 
<td><input type="text" name="sample2" size=10 maxlength=10 value=<?php echo $_POST['sample2'] ?>> </td> 
<td><input type="text" name="sample3" size=10 maxlength=10 value=<?php echo $_POST['sample3'] ?>> </td> 
<td><input type="text" name="sample4" size=10 maxlength=10 value=<?php echo $_POST['sample4'] ?>> </td> 
<td><input type="text" name="sample5" size=10 maxlength=10 value=<?php echo $_POST['sample5'] ?>> </td> </tr> 
</table></center> 

<br><br> 
<center>Press the calculate button: <input type=submit name=submit value="Calculate"> or <input type="button" name=query value="Reset"></center> 
<br><br> 
<center>Here is the geometric mean to be reported on the MOR: <?php echo pow($_POST['sample1'] * $_POST['sample2'] * $_POST['sample3'] * $_POST['sample4'] * $_POST['sample5'], 0.2) ?></center> 
</form> 

example (option 2):
i gave your form a name = calc.

<form action="calculator.html" method="post" name=calc> 
<center><table cellpadding="2" cellspacing="2"> 
<tr> <td><input type="text" name="sample1" size=10 maxlength=10 value=<?php echo $_POST['sample1'] ?>> </td> 
<td><input type="text" name="sample2" size=10 maxlength=10 value=<?php echo $_POST['sample2'] ?>> </td> 
<td><input type="text" name="sample3" size=10 maxlength=10 value=<?php echo $_POST['sample3'] ?>> </td> 
<td><input type="text" name="sample4" size=10 maxlength=10 value=<?php echo $_POST['sample4'] ?>> </td> 
<td><input type="text" name="sample5" size=10 maxlength=10 value=<?php echo $_POST['sample5'] ?>> </td> </tr> 
</table></center> 

<br><br> 
<center>Press the calculate button: <input type=submit name=submit value="Calculate"> or <input type="button" onclick="document.calc.sample1.value = ''; document.calc.sample2.value = ''; document.calc.sample3.value = ''; document.calc.sample4.value = ''; document.calc.sample5.value = ''; "></center> 
<br><br> 
<center>Here is the geometric mean to be reported on the MOR: <?php echo pow($_POST['sample1'] * $_POST['sample2'] * $_POST['sample3'] * $_POST['sample4'] * $_POST['sample5'], 0.2) ?></center> 
</form> 

hope that helps point you in the right direction...

[iagal]

Bingo.

Thank you SO much. #2 was a learning experience and works exactly as I was hoping!