how to use/what to do with return in JS

helloise

i have this in my javascript code but have no idea on how a returned value works/where does it return to???? what do i do/or can i do with a value that gets returned???

i am asking this so i can learn on how to use it cos i am new to all this and dont know how it works...please show/explain to me please?

thanks
here my full code:

<?php use_stylesheets_for_form($form) ?> 
<?php use_javascripts_for_form($form) ?> 

<html> 
<head> 
<script type="text/JavaScript"> 
function refreshPage(s)  

{  

window.location.reload();  

if((s.options[s.selectedIndex].value) = "zed-catcher") 
{ 
var $index = s.selectedIndex; 
var $value = s.options[$index].value; 
alert (s.selectedIndex);  

alert ($value); 
window.location.reload();  

[COLOR="Red"]return &value; //where does it return to ???? how/what to do with a return value???[/COLOR] 
} 
}  

</script> 
</head> 
</html> 

<body>  

<form action="<?php echo url_for('adminservice/'.($form->getObject()->isNew() ? 'create' : 'update').(!$form->getObject()->isNew() ? '?id='.$form->getObject()->getId() : '')) ?>" method="post" <?php $form->isMultipart() and print 'enctype="multipart/form-data" '?>> 
<?php if (!$form->getObject()->isNew()): ?> 
<input type="hidden" name="sf_method" value="put" /> 
<?php endif; ?> 

<table > 
<tfoot> 
<tr> 
<td colspan="2"> 
<?php echo $form->renderHiddenFields(false) ?> 
&nbsp;<a href="<?php echo url_for('adminservice/index') ?>">Back to list</a> 
<?php if (!$form->getObject()->isNew()): ?> 
&nbsp;<?php echo link_to('Delete', 'adminservice/delete?id='.$form->getObject()->getId(), array('method' => 'delete', 'confirm' => 'Are you sure?')) ?> 
<?php endif; ?> 
<input type="submit" value="Save" /> 
</td> 
</tr> 
</tfoot> 
<tbody> 
<?php echo $form->renderGlobalErrors() ?> 
<tr> 
<th><?php echo $form['name']->renderLabel() ?></th> 
<td> 
<?php echo $form['name']->renderError() ?> 
<?php echo $form['name']?> 
</td> 
</tr> 

<tr> 
<th><?php echo $form['logo_url']->renderLabel() ?></th> 
<td> 
<?php echo $form['logo_url']->renderError() ?> 
<?php echo $form['logo_url'] ?> 
</td> 
</tr> 
<tr> 
<th><?php echo $form['call_center_number']->renderLabel() ?></th> 
<td> 
<?php echo $form['call_center_number']->renderError() ?> 
<?php echo $form['call_center_number'] ?> 
</td> 
</tr> 
<tr> 
<th><?php echo $form['catcher_id']->renderLabel(); 
$catcher_id = $form->getObject()->getCatcherId(); 
$catcher = LpmCatcherPeer::getByCatcherId($catcher_id); 
$catcher_name = $catcher->getName(); 
?></th> 
<td> 
<?php echo $form['catcher_id']->renderError() ?> 
[COLOR="Red"]<select name="services" onchange="refreshPage(this.form.services)">[/COLOR] 
<?php 
$catcher_names = LpmCatcherPeer::getByAllNames(); 
foreach($catcher_names as $row) 
{ 
?> 
<option value="<?php echo $row->getName()."/".$row->getId();?>" <?php if($row->getName() == $catcher_name) echo ' selected="selected"'; ?> ><?php echo $row->getName();?></option>  

<?php 
} 

[COLOR="Red"]if ($row->getName() == "zed-catcher") //just thought with the return in my java script i can pass the newley selected value back to here and if it meets the if i echo these lines?? 
{ 
echo $form['service_code']->renderLabel();  

echo $form['service_code']->renderError();  

echo $form['service_code']; 
} [/COLOR] 
?> 
</select>  

</td>  

</tr> 
<tr> 
<th><?php echo $form['price_description']->renderLabel() ?></th> 
<td> 
<?php echo $form['price_description']->renderError() ?> 
<?php echo $form['price_description'] ?> 
</td> 
</tr> 
</tbody> 
</table> 
</form> 
</body>

dagon

helloise;10972288 wrote:
i have this in my javascript code but have no idea on how a returned value works/where does it return to???? what do i do/or can i do with a value that gets returned???

the value is returned to where the function is called, in this case, no point as the onchange event can't do anything with it.

<script type="text/javascript">
function test(){
	return 'im from the function';
}

var function_value =test();
alert(function_value);

</script>

helloise

dagon;10972491 wrote:
the value is returned to where the function is called, in this case, no point as the onchange event can't do anything with it.
<script type="text/javascript">
function test(){
	return 'im from the function';
}

var function_value =test();
alert(function_value);

</script>

thank you so if i understand it correclty if ihad to pass in a value = s,thus:

<script type="text/javascript">
function test([COLOR="Red"]s[/COLOR])
{
      [COLOR="red"]  s = 1 + 2;[/COLOR]
	return [COLOR="red"]s[/COLOR];
}

var function_value =[COLOR="red"]test(s)[/COLOR];
alert(function_value);

</script>

[/QUOTE]

is the above correct please????
thanks

johanafm

First off, please do not use color tags inside of code/php/html tags, since that ends up looking like

[color="red"]s[/color]

which is just plain annoying.

What did your browser say when you tried running the code you wanted to check for correctness? My favorite for feedback is Firefox's error console, but other browsers have their equivalents.