function recalculate(){
	product = 0;
	supportamt = 0;
	num_items = 6;
	if (document.location.href.indexOf("buy-urchin.php") != -1 ) {num_items = 1;}
	
	for($i=0; $i<num_items; $i++){
		amt = document.getElementById('qty'+$i).value * document.getElementById('prc'+$i).innerHTML;
		document.getElementById('amt'+$i).innerHTML  = amt;
		product += amt;
	}
	if (document.theForm.support.checked == true){
		supportamt = 2500.00
	}
	document.theForm.UrchinTotal.value = product+supportamt
	document.theForm.bc.value = product+supportamt
	document.theForm.supportamt.value = supportamt
}

function checkFields(){
	if (document.theForm.support.checked == false){
		return confirm("Are you sure you wish to purchase without installation support?.\n\nClick 'Cancel' to add this now or 'OK' to proceed without support.")

	}
}