function checkFee(){
	if(!IsInt(document.frmREG.Fee.value,true)){
		alert('The fee must be a number.');
		document.frmREG.Fee.value = '';
		document.frmREG.VAT.value = '';
		document.frmREG.TotalFee.value = '';
	}
	else{
		document.frmREG.VAT.value = (Math.round(document.frmREG.Fee.value.replace(',','')*));
		document.frmREG.VAT.value = document.frmREG.VAT.value.substring(0,document.frmREG.VAT.value.length-2) + '.' + document.frmREG.VAT.value.substring(document.frmREG.VAT.value.length-2,document.frmREG.VAT.value.length);
		if(document.frmREG.VAT.value.length>6){
			document.frmREG.VAT.value = document.frmREG.VAT.value.substring(0,document.frmREG.VAT.value.length-6) + ',' + document.frmREG.VAT.value.substring(document.frmREG.VAT.value.length-6,document.frmREG.VAT.value.length)};
	
		document.frmREG.TotalFee.value = (Math.round((document.frmREG.Fee.value.replace(',','')*100)+(document.frmREG.VAT.value.replace(',','')*100)));
		document.frmREG.TotalFee.value = document.frmREG.TotalFee.value.substring(0,document.frmREG.TotalFee.value.length-2) + '.' + document.frmREG.TotalFee.value.substring(document.frmREG.TotalFee.value.length-2,document.frmREG.TotalFee.value.length);
		if(document.frmREG.TotalFee.value.length>6){
			document.frmREG.TotalFee.value = document.frmREG.TotalFee.value.substring(0,document.frmREG.TotalFee.value.length-6) + ',' + document.frmREG.TotalFee.value.substring(document.frmREG.TotalFee.value.length-6,document.frmREG.TotalFee.value.length)};
	}
}
function MM_jumpMenu(targ,selObj,restore){ //v3.0
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}
function IsInt(checkStr,bReal) {
	var checkOK = "0123456789,";
	var allValid = true;
	var allNum = "";

	if (bReal){ checkOK = checkOK + '.';}

	for (i = 0;  i < checkStr.length;  i++)
	{
	  ch = checkStr.charAt(i);
	  for (j = 0;  j < checkOK.length;  j++)
		if (ch == checkOK.charAt(j))
		  break;
		if (j == checkOK.length)
		{
		  allValid = false;
		  break;
		}
		if (ch != ",")
		  allNum += ch;
	}

	if (!allValid)
	{
		return false;
	}
	else return true;
}
function updateFee(){
	
	var theFee;
	
	// automatically populate gross fee for  
	// package type
	switch (document.frmREG.NoM.value)
	{
		
		case "Silver":
				theFee = "14,950.00";
			break;
		
		case "Gold":
				theFee = "25,950.00";
			break;
		
		case "Platinum":
				theFee = "39,950.00";
			break;
			
		case "Lead Sponsor":
				theFee = "0";
			break;
		
		case "Drinks Reception Sponsor":
				theFee = "0";
			break;
		
		case "Delegate Bag Sponsor":
				theFee = "0";
			break;
		
		case "Catalogue Sponsor":
				theFee = "0";
			break;
		
		case "Exhibitor Package":
				theFee = "7,950";
			break;
								
		case "Workshop Package":
				theFee = "0";
			break;
								
		default:
			theFee = "0.00";
			break;
	}
	
	// update fee box
	document.frmREG.Fee.value = theFee;
	
	// ensure tax and total is calculated
	checkFee();
}

function updateDelFee(delNo){
	
	var theFee;
	
	// automatically populate gross fee for delegate 
	// package type
	switch (document.frmREG.Package.value)
	{
		
		case "VIP Delegate Package":
				theFee = "1750.00";
			break;

		case "Platinum Plus Package":
				theFee = "870.00";
			break;						
		
		default:
			theFee = "0.00";
			break;
	}
		
	// add extra for Virtual Conference booking
	if (document.frmREG.virtual.checked)
	{ theVC = parseFloat("395"); }
		
	else
	{ theVC = parseFloat("0"); }
	
	// theFee = parseFloat(theFee) + theVC;	
	
	
	// update fee box
	document.frmREG.Fee.value = (theFee * delNo) + theVC;
	
	// ensure tax and total is calculated
	checkFee();
}