php if with database.

[BuzzStPoint]

Here's what I am trying to achieve.

Have a bit of code, Javascript

<script type="text/javascript"><!--
function updatesum() {
document.alkalinity2.sum.value  = (document.alkalinity2.sum2.value -0) - (document.alkalinity1.sum1.value -0);
document.alkalinity3.sum2.value = (document.alkalinity2.sum.value) / (10) * (0.075) * (1.5) * (16);
document.alkalinity4.sum3.value = (document.alkalinity3.sum2.value) / (16);

document.calcium2.sum.value  = (document.calcium2.sum2.value -0) - (document.calcium1.sum1.value -0);
document.calcium3.sum2.value = (document.calcium2.sum.value) / (10) * (0.075) * (1.25) * (16);
document.calcium4.sum3.value = (document.calcium3.sum2.value) / (16);

document.chlorine2.fchl.value       = (document.chlorine1.r0871.value -0) * (0.2);
document.chlorine4.cchl.value       = (document.chlorine3.r0003.value -0) * (0.2); 
document.chlorine5.breakpoint.value = (document.chlorine4.cchl.value) * (10);
document.chlorine6.shockoz.value    = (document.chlorine5.breakpoint.value) * (13.0) * (0.075);
document.chlorine7.shockgal.value   = (document.chlorine6.shockoz.value) / (128);
document.chlorine9.change.value     = (document.chlorine8.needs.value -0) - (document.chlorine2.fchl.value);
document.chlorine10.addoz.value     = (document.chlorine9.change.value) * (13.0) * (0.075);
}
//--></script>

Then I also have a database table:
Pool_config - Selected_Month

I have a drop down with radio buttons that will change the selected month.
In this database table is one of the following depending on the Radios and drop down:
January_Whirl
February_Whirl Through December
Or
January_Pool
February_Pool thorough December.

Is there a way I can change the javascript depending on if the "Selected_Month" was Whirl or Pool ?

Basically if the Selected_Month was anymonthWhirl The javascript would remain the same. But if the Selected_Month was anymonthPool the (0.075) in the java would change to (1.13)

Any help would be great.

[johanafm]

index.php

if (isWhirl())
	$jsVal = 0.075;
else
	$jsVal = 1.13

echo '<script type="text/javascript" src="file.php?val='.$jsVal.'"></script>';

Just remember that this can't be used for anything other than displaying calculations to the end user. You have to perform the calculations server side again, based on wether it's for Whirl or Pool.

[BuzzStPoint]

Here's how it ended with it working..

if (preg_match("/Whirl/i", $Selected_Month)) { 
    $worp = 0.075;
}else{
    $worp = 1.13 ;
    }

Then for the javascript

<script type="text/javascript"><!--
function updatesum() {
document.alkalinity2.sum.value  = (document.alkalinity2.sum2.value -0) - (document.alkalinity1.sum1.value -0);
document.alkalinity3.sum2.value = Math.round((document.alkalinity2.sum.value) / (10) * (<?php echo $worp ?>) * (1.5) * (16)*100)/100;
document.alkalinity4.sum3.value = Math.round((document.alkalinity3.sum2.value) / (16)*100)/100;

document.calcium2.sum.value  = (document.calcium2.sum2.value -0) - (document.calcium1.sum1.value -0);
document.calcium3.sum2.value = Math.round((document.calcium2.sum.value) / (10) * (<?php echo $worp ?>) * (1.25) * (16)*100)/100;
document.calcium4.sum3.value = Math.round((document.calcium3.sum2.value) / (16)*100)/100;

document.chlorine2.fchl.value       = Math.round((document.chlorine1.r0871.value -0) * (0.2)*100)/100;
document.chlorine4.cchl.value       = Math.round((document.chlorine3.r0003.value -0) * (0.2)*100)/100;
document.chlorine5.breakpoint.value = (document.chlorine4.cchl.value) * (10);
document.chlorine6.shockoz.value    = (document.chlorine5.breakpoint.value) * (13.0) * (<?php echo $worp ?>);
document.chlorine7.shockgal.value   = Math.round((document.chlorine6.shockoz.value) / (128)*100)/100;
document.chlorine9.change.value     = (document.chlorine8.needs.value -0) - (document.chlorine2.fchl.value);
document.chlorine10.addoz.value     = Math.round((document.chlorine9.change.value) * (13.0) * (<?php echo $worp ?>)*100)/100;
}
//--></script>