Hi Guys,

I'm creating an online qouting system where clients put together a list of items they want to order and get an instant quote. They have the option to include labour by a checkbox. (If checked add labour to total if unchecked don't).

I'm trying to pass my labour and total values from estimate.php to summary.php but am hitting some problems.

When a client doesn't want labour (box unchecked) total value passes fine. When a client wants labour included (box checked) labour value passes fine but total is an empty space.

My labour checkbox has an input id, total has a div id. These are passed into my js function and a sum is calculated. Due to my sum returning r this is the total and I think I need to convert this back into php in order to pass it to summary.php. I'm a bit confussed and lack knowledge with php and js inpurticular so any help or advice is greatly appreciated.

Below is my code to help you understand my problem a bit better.

estimate.php
Code:
var oldTotal=0;
function showlabour(total,labour) {
	//alert(total);
	if(document.getElementById('labour').checked == true) {
		total = parseFloat(total) + labour;
		oldTotal = total;
		total = formatNumber(total,'2',',','.','','','','');
		document.getElementById('total').innerHTML = '<b>&pound;'+total+'</b>';
	}else {
		total = parseFloat(oldTotal) - labour;
		oldTotal = total;
		total = formatNumber(total,'2',',','.','','','','');
		document.getElementById('total').innerHTML = '<b>&pound;'+total+'</b>';
	}
}

function formatNumber(num,dec,thou,pnt,curr1,curr2,n1,n2) {
	var x = Math.round(num * Math.pow(10,dec));
	if (x >= 0) 
	n1=n2='';
	var y = (''+Math.abs(x)).split('');
	var z = y.length - dec; 
	if (z<0) 
	z--; 
	for(var i = z; i < 0; i++) 
	y.unshift('0');
	y.splice(z, 0, pnt); 
	if(y[0] == pnt) 
	y.unshift('0'); 
	while (z > 3) 
	{
		z-=3; 
		y.splice(z,0,thou);
	}
	var r = curr1+n1+y.join('')+n2+curr2;
	return r;
}

function OnButton2() {  
document.form1.action = "summary.php"
document.form1.submit();
return true; 
}
PHP Code:
$jsTotal $total;

echo 
"<input id='labour' type='checkbox' name='checkbox1' value='checkbox1' onclick='showlabour($jsTotal , $totallabourcost );' />"
echo 
'Labour';
echo 
'&pound;'$totallabour'<input name="totallabour" type="hidden" value="'$totallabour'" />';

echo 
'Total';
echo 
'<div id="total">&pound;'$total'<input name="total" type="hidden" value="'$total'" /></div>'
summary.php
PHP Code:
if ( $_POST['checkbox1'] ) { 
//add labour to the total 
echo "labour ", ($_POST["totallabour"]), "<br/>";
echo 
"total ", ($_POST ["total"]), "<br/>";
} else { 
//dont 
echo "total ", ($_POST ["total"]), "<br/>";