var retreats = new Array("Introductory Weekend Retreat at Vajrasana                       Sep 26-28",115,80,50,12,true,
"Buddhist Meditation Foundation Course at St Martins Lane        Sep 27-Oct 18",68,48,0,-1,true,
"Buddhism Course at LBC                                          Oct 9-Nov 6",57,40,0,-1,true,
"What Matters? Retreat at Vajrasana                              Oct 10-12",105,75,50,-1,true,
"Compassionate Communication course at LBC                       Oct 11",21,16,0,-1,true,
"Introductory Day Retreat at the LBC                             Oct 18",28,21,0,-1,true,
"MBRP Course for Addiction at the LBC                            Oct 20-Nov 24", 95,75,0,-1,true,
"Buddhist Meditation Foundation Course at St Martins Lane        Oct 25-Nov 15",68,48,0,-1,true,
"Introductory Weekend Retreat at Vajrasana                       Nov 14-16",115,80,50,12,true,
"Buddhist Meditation Foundation Course at the LBC                Nov 18-Dec 16",57,40,0,-1,true,
"Cultivating Loving Kindness Course at the LBC                   Nov 20-Dec 18",57,40,0,-1,true,
"Into Silence - Women Mitras' retreat at Vajrasana               Nov 21-23",105,75,50,-1,true,
"Buddhist Meditation Foundation Course at St Martins Lane        Nov 22-Dec 13",68,48,0,-1,true,
"Introductory Day Retreat at the LBC                             Nov 29",28,21,0,-1,true,
"Awakening at LBC                                                Nov 30",21,16,0,-1,true,
"Introductory Weekend Retreat at Vajrasana                       Dec 5-7",115,80,50,12,true,
"Winter Open Retreat - Sibford (10 days) PRICE UNTIL DEC 1       Dec 22-Jan 1",350,250,50,-1,true,
"Winter Open Retreat - Sibford(First 5 days) PRICE UNTIL DEC 1   Dec 22- 27",200,150,50,-1,true,
"Winter Open Retreat - Sibford(Second 5 days) PRICE UNTIL DEC 1  Dec 27- Jan 1",200,150,50,-1,true,
"Mandala Retreat at Vajrasana                                    Dec 28-Jan 1",155,115,50,12,true )
function changeRate()
{
rate=document.forms[0].Rate
concession=document.forms[0].Concession
if (rate[0].checked)
	{
	concession.length=5
	concession[4].text="None"
	concession.selectedIndex=4
	concession.disabled=true
	}
else
	{
	concession.length=4
	concession.disabled=false
	}
displayTotalCost()
}

function changeLBCEvent()
{
lbcEvent=document.forms[0].LBCEvent
minibusNeeded=document.forms[0].MinibusNeeded
minibus=document.forms[0].Minibus
minibusCost=retreats[6*lbcEvent.selectedIndex+4]
if (minibusCost>=0)
	{
	minibusNeeded.disabled=false
	minibus.value="No"
	if (minibusCost>0)
		{
		document.getElementById('minibusText').innerHTML=" There is a £"+minibusCost+" charge for the minibus, which is paid on the day"
		}
	else
		{
		document.getElementById('minibusText').innerHTML=" The charge for the minibus is included in the cost of this event"
		}
	}
else
	{
	minibusNeeded.checked=false
	minibusNeeded.disabled=true
	minibus.value="Not available"
	document.getElementById('minibusText').innerHTML=" A minibus is not available for this event"
	}
displayTotalCost()
}

function changeMinibusNeeded()
{
minibusNeeded=document.forms[0].MinibusNeeded
minibus=document.forms[0].Minibus
if (minibusNeeded.checked)
	{minibus.value="Yes"}
else
	{minibus.value="No"}
displayTotalCost()
}

function displayTotalCost()
{
rate=document.forms[0].Rate
payment=document.forms[0].Payment
lbcEvent=document.forms[0].LBCEvent
minibusNeeded=document.forms[0].MinibusNeeded
minibus=document.forms[0].Minibus
amount=document.forms[0].Amount
desc=document.forms[0].Description
var cost
var deposit

desc.value=lbcEvent[lbcEvent.selectedIndex].text
if (rate[0].checked)
	{cost=retreats[6*lbcEvent.selectedIndex+1]}
else
	{cost=retreats[6*lbcEvent.selectedIndex+2]}
document.getElementById('totalCostText').innerHTML=" The total cost of  £"+cost
deposit=retreats[6*lbcEvent.selectedIndex+3]
if (deposit>0)
	{
	payment[1].disabled=false
	document.getElementById('depositText').innerHTML=" A  non-refundable, non-transferable deposit of  £"+deposit
	}
else
	{
	payment[0].checked=true
	payment[1].checked=false
	payment[1].disabled=true
	document.getElementById('depositText').innerHTML=" No deposit available for this event, full payment required"
	}
if (payment[0].checked)
	{amount.value=cost}
else
	{amount.value=deposit}
document.getElementById('chequeText').innerHTML="I enclose a cheque made out to <STRONG>'London Buddhist Centre'</STRONG> for £"+amount.value
document.getElementById('creditCardText').innerHTML="Please charge the amount of <STRONG>£"+amount.value+"</STRONG> to my card"
}

function setup()
{
lbcEvent=document.forms[0].LBCEvent
lbcEvent.length=retreats.length/6
for (i=0; i<lbcEvent.length; i++)
{
lbcEvent[i].text=retreats[6*i]
}
changeLBCEvent()
displayTotalCost()
}

function validate()
{
field=document.forms[0].CustomerName
if (field.value==null||field.value=="")
	{alert("Please enter your name");return false}
field=document.forms[0].DeliveryAddress
if (field.value==null||field.value=="")
	{alert("Please enter your address");return false}
field=document.forms[0].DeliveryPostCode
if (field.value==null||field.value=="")
	{alert("Please enter your postcode");return false}
field=document.forms[0].ContactNumber
if (field.value==null||field.value=="")
	{alert("Please enter your phone number");return false}
field=document.forms[0].Customeremail
if (field.value==null||field.value=="")
	{alert("Please enter your email address");return false}
return true
}