var submitted = 0;
function CheckRequiredFields() {
	if (submitted) {
		alert("Form already submitted, please be patient");
		return false;
	}
	var errormessage = new String();
	var Today = new Date();
	var ThisYear = Today.getFullYear();
	var ThisMonth = Today.getMonth() + 1;
	var cardM = document.form1.Expiry_Date_Month.selectedIndex
	var cardY = document.form1.Expiry_Date_Year.selectedIndex
	var cardYear = document.form1.Expiry_Date_Year.options[cardY].value;
	var cardMonth = document.form1.Expiry_Date_Month.options[cardM].value;
	var cardType = document.form1.Credit_Card_Type.selectedIndex
	if(WithoutContent(document.form1.First_Name.value))	{errormessage += "\n\nPlease enter your first name.";}
	if(WithoutContent(document.form1.Surname.value))	{errormessage += "\n\nPlease enter your surname.";}
	if(WithoutContent(document.form1.Address1.value))	{errormessage += "\n\nPlease enter your address.";}
	if(WithoutContent(document.form1.Town_City.value))	{errormessage += "\n\nPlease enter your town or city.";}
	if(WithoutContent(document.form1.Postcode.value))	{errormessage += "\n\nPlease enter your postcode.";}
	if(WithoutContent(document.form1.Telephone_Number.value))	{errormessage += "\n\nPlease enter your telephone number.";}
	if(WithoutContent(document.form1.Email.value))	{errormessage += "\n\nPlease enter your email address.";}
	if(NoneWithCheck(document.form1.HP))	{errormessage += "\n\nAre you a health professional?";}
	if(getCheckedValue(document.form1.HP) == 'Yes'){
		if(WithoutSelectionValue(document.form1.HP_Area)) {errormessage += "\n\nPlease tell us what area you work in.";}
	}
	
	if(!WithoutContent(document.form1.Grandtotal.value)){
		if(WithoutSelectionValue(document.form1.Credit_Card_Type))	{errormessage += "\n\nPlease enter the credit card type.";}
		if(document.form1.Credit_Card_Type.options[cardType].value == "switch_solo_maestro"){
			if(WithoutContent(document.form1.Issue_Number.value) && WithoutSelectionValue(document.form1.Start_Date_Month) && WithoutSelectionValue(document.form1.Start_Date_Year))	{errormessage += "\n\nPlease enter your credit card issue number or start date.";} 
			else {
				if(WithoutContent(document.form1.Issue_Number.value)){
					if(WithoutSelectionValue(document.form1.Start_Date_Month) || WithoutSelectionValue(document.form1.Start_Date_Year)){errormessage += "\n\nPlease enter your credit card start date.";}
				}
			}
		}
		if(WithoutContent(document.form1.Credit_Card_Number.value))	{errormessage += "\n\nPlease enter the credit card number.";}
		if(!isCreditCard(document.form1.Credit_Card_Number.value))	{errormessage += "\n\nPlease check the credit card number.";}
		if(WithoutSelectionValue(document.form1.Expiry_Date_Month))	{errormessage += "\n\nPlease select the credit card expiry month.";}
		if(WithoutSelectionValue(document.form1.Expiry_Date_Year))	{errormessage += "\n\nPlease select the credit card expiry year.";}
		if (cardYear < ThisYear){errormessage += "\n\nYour card appears to have expired.";}
		if (cardYear <= ThisYear && cardMonth < ThisMonth){errormessage += "\n\nYour card appears to have expired.";}
		if(WithoutContent(document.form1.Security_Code.value))	{errormessage += "\n\nPlease enter the credit card security code.";}
		if(WithoutContent(document.form1.Name_on_Card.value))	{errormessage += "\n\nPlease enter the name on the credit card.";}
		if(WithoutContent(document.form1.Billing_Postcode.value))	{errormessage += "\n\nPlease enter credit card billing postcode.";}
		if(WithoutContent(document.form1.Telephone_Number_Card_Holder.value))	{errormessage += "\n\nPlease enter the credit card telephone number.";}
	}
	if(WithoutSelectionValue(document.form1.How_did_you_hear_about_WCRF_UK_Resources))	{errormessage += "\n\nHow did you hear about WCRF UK Resources?";}
	
	if(errormessage.length > 2) {
		alert('NOTE:' + errormessage);
		return false;
		}	
	return true;
	if (!submitted) {
		form.submitit.disabled=true;
		submitted = 1;
		form.submit();
	}
} 
function getCheckedValue(radioObj) {
	if(!radioObj)
		return "";
	var radioLength = radioObj.length;
	if(radioLength == undefined)
		if(radioObj.checked)
			return radioObj.value;
		else
			return "";
	for(var i = 0; i < radioLength; i++) {
		if(radioObj[i].checked) {
			return radioObj[i].value;
		}
	}
	return "";
}


function WithoutContent(ss) {
if(ss.length > 0) { return false; }
return true;
}

function NoneWithContent(ss) {
for(var i = 0; i < ss.length; i++) {
	if(ss[i].value.length > 0) { return false; }
	}
return true;
}

function NoneWithCheck(ss) {
for(var i = 0; i < ss.length; i++) {
	if(ss[i].checked) { return false; }
	}
return true;
}

function WithoutCheck(ss) {
if(ss.checked) { return false; }
return true;
}

function WithoutSelectionValue(ss) {
for(var i = 0; i < ss.length; i++) {
	if(ss[i].selected) {
		if(ss[i].value.length) { return false; }
		}
	}
return true;
}
function isCreditCard( CC ) {                         
if (CC.length > 19)	return (false);
sum = 0; mul = 1; l = CC.length;
for (i = 0; i < l; i++) {
   digit = CC.substring(l-i-1,l-i);
   tproduct = parseInt(digit ,10)*mul;
   if (tproduct >= 10)
		sum += (tproduct % 10) + 1;
   else
		sum += tproduct;
   if (mul == 1)
		mul++;
   else
		mul--;
}
if ((sum % 10) == 0)              
	return (true);
else
   return (false);
}

function DeselectRadio(form){
	for (var i = 0; i < document.form1.Donation_Amount.length; i++){
		document.form1.Donation_Amount[i].checked = false
	}
}

function calc(){



	var v01 = parseFloat(document.form1.M_Qty_01.value * 4.00);
	document.form1.M_Qty_01.value = parseInt(document.form1.M_Qty_01.value - 0);
	document.form1.M_Cost_01.value = formatCurrency(v01);
		
	var v02 = parseFloat(document.form1.M_Qty_02.value * 4.0);
	document.form1.M_Qty_02.value = parseInt(document.form1.M_Qty_02.value - 0);
	document.form1.M_Cost_02.value = formatCurrency(v02);
	
	var v03 = parseFloat(document.form1.M_Qty_03.value * 6.80);
	document.form1.M_Qty_03.value = parseInt(document.form1.M_Qty_03.value - 0);
	document.form1.M_Cost_03.value = formatCurrency(v03);

	var v04 = parseFloat(document.form1.M_Qty_04.value * 8.00);
	document.form1.M_Qty_04.value = parseInt(document.form1.M_Qty_04.value - 0);
	document.form1.M_Cost_04.value = formatCurrency(v04);
	
	var v05 = parseFloat(document.form1.M_Qty_05.value * 6.80);
	document.form1.M_Qty_05.value = parseInt(document.form1.M_Qty_05.value - 0);
	document.form1.M_Cost_05.value = formatCurrency(v05);
	
	var v06 = parseFloat(document.form1.M_Qty_06.value * 8.00);
	document.form1.M_Qty_06.value = parseInt(document.form1.M_Qty_06.value - 0);
	document.form1.M_Cost_06.value = formatCurrency(v06);
	
	var v07 = parseFloat(document.form1.M_Qty_07.value * 4.00);
	document.form1.M_Qty_07.value = parseInt(document.form1.M_Qty_07.value - 0);
	document.form1.M_Cost_07.value = formatCurrency(v07);
	
	var v08 = parseFloat(document.form1.M_Qty_08.value * 5);
	document.form1.M_Qty_08.value = parseInt(document.form1.M_Qty_08.value - 0);
	document.form1.M_Cost_08.value = formatCurrency(v08);
	
	var v09 = parseFloat(document.form1.M_Qty_09.value * 6.50);
	document.form1.M_Qty_09.value = parseInt(document.form1.M_Qty_09.value - 0);
	document.form1.M_Cost_09.value = formatCurrency(v09);
	
	var v10 = parseFloat(document.form1.M_Qty_10.value * 6.50);
	document.form1.M_Qty_10.value = parseInt(document.form1.M_Qty_10.value - 0);
	document.form1.M_Cost_10.value = formatCurrency(v10);
	
	var v11 = parseFloat(document.form1.M_Qty_11.value * 6.50);
	document.form1.M_Qty_11.value = parseInt(document.form1.M_Qty_11.value - 0);
	document.form1.M_Cost_11.value = formatCurrency(v11);
	
	var v12 = parseFloat(document.form1.M_Qty_12.value * 1.30);
	document.form1.M_Qty_12.value = parseInt(document.form1.M_Qty_12.value - 0);
	document.form1.M_Cost_12.value = formatCurrency(v12);
	
	var v13 = parseFloat(document.form1.M_Qty_13.value * 7);
	document.form1.M_Qty_13.value = parseInt(document.form1.M_Qty_13.value - 0);
	document.form1.M_Cost_13.value = formatCurrency(v13);
	
	var v14 = parseFloat(document.form1.M_Qty_14.value * 9);
	document.form1.M_Qty_14.value = parseInt(document.form1.M_Qty_14.value - 0);
	document.form1.M_Cost_14.value = formatCurrency(v14);
	
	var v15 = parseFloat(document.form1.M_Qty_15.value * 8);
	document.form1.M_Qty_15.value = parseInt(document.form1.M_Qty_15.value - 0);
	document.form1.M_Cost_15.value = formatCurrency(v15);

	var v16 = parseFloat(document.form1.M_Qty_16.value * 5.25);
	document.form1.M_Qty_16.value = parseInt(document.form1.M_Qty_16.value - 0);
	document.form1.M_Cost_16.value = formatCurrency(v16);
	
	var v17 = parseFloat(document.form1.M_Qty_17.value * 8);
	document.form1.M_Qty_17.value = parseInt(document.form1.M_Qty_17.value - 0);
	document.form1.M_Cost_17.value = formatCurrency(v17);
	
	var v18 = parseFloat(document.form1.M_Qty_18.value * 6.80);
	document.form1.M_Qty_18.value = parseInt(document.form1.M_Qty_18.value - 0);
	document.form1.M_Cost_18.value = formatCurrency(v18);
	
	var v19 = parseFloat(document.form1.M_Qty_19.value * 6.80);
	document.form1.M_Qty_19.value = parseInt(document.form1.M_Qty_19.value - 0);
	document.form1.M_Cost_19.value = formatCurrency(v19);
	
	var v20 = parseFloat(document.form1.M_Qty_20.value * 6.50);
	document.form1.M_Qty_20.value = parseInt(document.form1.M_Qty_20.value - 0);
	document.form1.M_Cost_20.value = formatCurrency(v20);
	
	/*var v21 = parseFloat(document.form1.M_Qty_21.value * 25);
	document.form1.M_Qty_21.value = parseInt(document.form1.M_Qty_21.value - 0);
	document.form1.M_Cost_21.value = formatCurrency(v21);*/

	var v22 = parseFloat(document.form1.M_Qty_22.value * 4.00);
	document.form1.M_Qty_22.value = parseInt(document.form1.M_Qty_22.value - 0);
	document.form1.M_Cost_22.value = formatCurrency(v22);	

	var v23 = parseFloat(document.form1.M_Qty_23.value * 4.00);
	document.form1.M_Qty_23.value = parseInt(document.form1.M_Qty_23.value - 0);
	document.form1.M_Cost_23.value = formatCurrency(v23);	

	var v24 = parseFloat(document.form1.M_Qty_24.value * 6.50);
	document.form1.M_Qty_24.value = parseInt(document.form1.M_Qty_24.value - 0);
	document.form1.M_Cost_24.value = formatCurrency(v24);	

	var v25 = parseFloat(document.form1.M_Qty_25.value * 11.25);
	document.form1.M_Qty_25.value = parseInt(document.form1.M_Qty_25.value - 0);
	document.form1.M_Cost_25.value = formatCurrency(v25);	

	var v26 = parseFloat(document.form1.M_Qty_26.value * 4.00);
	document.form1.M_Qty_26.value = parseInt(document.form1.M_Qty_26.value - 0);
	document.form1.M_Cost_26.value = formatCurrency(v26);	
	
	var v27 = parseFloat(document.form1.M_Qty_27.value * 4.00);
	document.form1.M_Qty_27.value = parseInt(document.form1.M_Qty_27.value - 0);
	document.form1.M_Cost_27.value = formatCurrency(v27);		
	
	var v28 = parseFloat(document.form1.M_Qty_28.value * 12.50);
	document.form1.M_Qty_28.value = parseInt(document.form1.M_Qty_28.value - 0);
	document.form1.M_Cost_28.value = formatCurrency(v28);		
	
	var v29 = parseFloat(document.form1.M_Qty_29.value * 6.50);
	document.form1.M_Qty_29.value = parseInt(document.form1.M_Qty_29.value - 0);
	document.form1.M_Cost_29.value = formatCurrency(v29);	

	var v30 = parseFloat(document.form1.M_Qty_30.value * 4.00);
	document.form1.M_Qty_30.value = parseInt(document.form1.M_Qty_30.value - 0);
	document.form1.M_Cost_30.value = formatCurrency(v30);	
	
	var v31 = parseFloat(document.form1.M_Qty_31.value * 4.00);
	document.form1.M_Qty_31.value = parseInt(document.form1.M_Qty_31.value - 0);
	document.form1.M_Cost_31.value = formatCurrency(v31);	
	
	var v32 = parseFloat(document.form1.M_Qty_32.value * 4.00);
	document.form1.M_Qty_32.value = parseInt(document.form1.M_Qty_32.value - 0);
	document.form1.M_Cost_32.value = formatCurrency(v32);	
	
	var v33 = parseFloat(document.form1.M_Qty_33.value * 10.00);
	document.form1.M_Qty_33.value = parseInt(document.form1.M_Qty_33.value - 0);
	document.form1.M_Cost_33.value = formatCurrency(v33);	
	
	var v34 = parseFloat(document.form1.M_Qty_34.value * 6.50);
	document.form1.M_Qty_34.value = parseInt(document.form1.M_Qty_34.value - 0);
	document.form1.M_Cost_34.value = formatCurrency(v34);	
	
	var v35 = parseFloat(document.form1.M_Qty_35.value * 4.00);
	document.form1.M_Qty_35.value = parseInt(document.form1.M_Qty_35.value - 0);
	document.form1.M_Cost_35.value = formatCurrency(v35);	
	
	var v36 = parseFloat(document.form1.M_Qty_36.value * 2.50);
	document.form1.M_Qty_36.value = parseInt(document.form1.M_Qty_36.value - 0);
	document.form1.M_Cost_36.value = formatCurrency(v36);	
	
	var v37 = parseFloat(document.form1.M_Qty_37.value * 6.50);
	document.form1.M_Qty_37.value = parseInt(document.form1.M_Qty_37.value - 0);
	document.form1.M_Cost_37.value = formatCurrency(v37);	
	
	var v38 = parseFloat(document.form1.M_Qty_38.value * 12.50);
	document.form1.M_Qty_38.value = parseInt(document.form1.M_Qty_38.value - 0);
	document.form1.M_Cost_38.value = formatCurrency(v38);	
	
	var v39 = parseFloat(document.form1.M_Qty_39.value * 6.80);
	document.form1.M_Qty_39.value = parseInt(document.form1.M_Qty_39.value - 0);
	document.form1.M_Cost_39.value = formatCurrency(v39);	
	
	var v40 = parseFloat(document.form1.M_Qty_40.value * 6.80);
	document.form1.M_Qty_40.value = parseInt(document.form1.M_Qty_40.value - 0);
	document.form1.M_Cost_40.value = formatCurrency(v40);	
	
	var v41 = parseFloat(document.form1.M_Qty_41.value * 6.50);
	document.form1.M_Qty_41.value = parseInt(document.form1.M_Qty_41.value - 0);
	document.form1.M_Cost_41.value = formatCurrency(v41);	
	
	var v42 = parseFloat(document.form1.M_Qty_42.value * 6.50);
	document.form1.M_Qty_42.value = parseInt(document.form1.M_Qty_42.value - 0);
	document.form1.M_Cost_42.value = formatCurrency(v42);	
	
	var v43 = parseFloat(document.form1.M_Qty_43.value * 6.50);
	document.form1.M_Qty_43.value = parseInt(document.form1.M_Qty_43.value - 0);
	document.form1.M_Cost_43.value = formatCurrency(v43);	
	
	var v44 = parseFloat(document.form1.M_Qty_44.value * 4.00);
	document.form1.M_Qty_44.value = parseInt(document.form1.M_Qty_44.value - 0);
	document.form1.M_Cost_44.value = formatCurrency(v44);	
	
	var v45 = parseFloat(document.form1.M_Qty_45.value * 2.50);
	document.form1.M_Qty_45.value = parseInt(document.form1.M_Qty_45.value - 0);
	document.form1.M_Cost_45.value = formatCurrency(v45);	
	
	var v46 = parseFloat(document.form1.M_Qty_46.value * 3.00);
	document.form1.M_Qty_46.value = parseInt(document.form1.M_Qty_46.value - 0);
	document.form1.M_Cost_46.value = formatCurrency(v46);	
	
	var v47 = parseFloat(document.form1.M_Qty_47.value * 3.00);
	document.form1.M_Qty_47.value = parseInt(document.form1.M_Qty_47.value - 0);
	document.form1.M_Cost_47.value = formatCurrency(v47);
	
	var v48 = parseFloat(document.form1.M_Qty_48.value * 3.00);
	document.form1.M_Qty_48.value = parseInt(document.form1.M_Qty_48.value - 0);
	document.form1.M_Cost_48.value = formatCurrency(v48);
	
	var v49 = parseFloat(document.form1.M_Qty_49.value * 3.00);
	document.form1.M_Qty_49.value = parseInt(document.form1.M_Qty_49.value - 0);
	document.form1.M_Cost_49.value = formatCurrency(v49);
	
	var v50 = parseFloat(document.form1.M_Qty_50.value * 12.50);
	document.form1.M_Qty_50.value = parseInt(document.form1.M_Qty_50.value - 0);
	document.form1.M_Cost_50.value = formatCurrency(v50);
	
	var v51 = parseFloat(document.form1.M_Qty_51.value * 4.00);
	document.form1.M_Qty_51.value = parseInt(document.form1.M_Qty_51.value - 0);
	document.form1.M_Cost_51.value = formatCurrency(v51);
	
	var v52 = parseFloat(document.form1.M_Qty_52.value * 6.80);
	document.form1.M_Qty_52.value = parseInt(document.form1.M_Qty_52.value - 0);
	document.form1.M_Cost_52.value = formatCurrency(v52);
	
	var v53 = parseFloat(document.form1.M_Qty_53.value * 2.50);
	document.form1.M_Qty_53.value = parseInt(document.form1.M_Qty_53.value - 0);
	document.form1.M_Cost_53.value = formatCurrency(v53);
	
	var v54 = parseFloat(document.form1.M_Qty_54.value * 6.50);
	document.form1.M_Qty_54.value = parseInt(document.form1.M_Qty_54.value - 0);
	document.form1.M_Cost_54.value = formatCurrency(v54);
	
	var v55 = parseFloat(document.form1.M_Qty_55.value * 6.50);
	document.form1.M_Qty_55.value = parseInt(document.form1.M_Qty_55.value - 0);
	document.form1.M_Cost_55.value = formatCurrency(v55);
	
	var subtotal = 
	parseFloat(v01) + 
	parseFloat(v02) + 
	parseFloat(v03) +  
	parseFloat(v04) + 
	parseFloat(v05) + 
	parseFloat(v06) + 
	parseFloat(v07) + 
	parseFloat(v08) + 
	parseFloat(v09) + 
	parseFloat(v10) + 
	parseFloat(v11) + 
	parseFloat(v12) + 
	parseFloat(v13) + 
	parseFloat(v14) + 
	parseFloat(v15) + 
	parseFloat(v16) + 
	parseFloat(v17) + 
	parseFloat(v18) + 
	parseFloat(v19) + 
	parseFloat(v20) + 
	//parseFloat(v21) + 
	parseFloat(v22) + 
	parseFloat(v23) + 
	parseFloat(v24) + 
	parseFloat(v25) + 
	parseFloat(v26) + 
	parseFloat(v27) + 
	parseFloat(v28) + 
	parseFloat(v29) + 
	parseFloat(v30) + 
	parseFloat(v31) + 
	parseFloat(v32) + 
	parseFloat(v33) + 
	parseFloat(v34) + 
	parseFloat(v35) +
	parseFloat(v36) +
	parseFloat(v37) +
	parseFloat(v38) +
	parseFloat(v39) +
	parseFloat(v40) +
	parseFloat(v41) +
	parseFloat(v42) +
	parseFloat(v43) +
	parseFloat(v44) +
	parseFloat(v45) +
	parseFloat(v46) +
	parseFloat(v47) +
	parseFloat(v48) +
	parseFloat(v49) +
	parseFloat(v50) +
	parseFloat(v51) +
	parseFloat(v52) +
	parseFloat(v53) +
	parseFloat(v54) +	
	parseFloat(v55);
	
	document.form1.M_Subtotal.value = formatCurrency(subtotal);
	if(subtotal > 0){
		document.form1.action ="https://rsm2.rsmsecure.com/cpterminal/cpweb.php";
	} else {
		if(
			WithoutSelectionValue(document.form1.M_free_publication_1) && 
			WithoutSelectionValue(document.form1.M_free_publication_2) && 
			WithoutSelectionValue(document.form1.M_free_publication_3) && 
			WithoutSelectionValue(document.form1.M_free_publication_4) && 
			WithoutSelectionValue(document.form1.M_free_publication_5) && 
			WithoutSelectionValue(document.form1.M_free_publication_6)
		) {
			alert('NOTE: Please select your publications.');
			return false;
		}
		document.form1.action ="ordering_publications2.php";
	}
	  
	var qty1 =
	parseInt(document.form1.M_Qty_01.value) + 
	parseInt(document.form1.M_Qty_02.value) + 
	parseInt(document.form1.M_Qty_03.value) + 
	parseInt(document.form1.M_Qty_04.value) + 	
	parseInt(document.form1.M_Qty_05.value) + 
	parseInt(document.form1.M_Qty_06.value) + 
	parseInt(document.form1.M_Qty_07.value) + 
	parseInt(document.form1.M_Qty_08.value) + 
	parseInt(document.form1.M_Qty_09.value) + 
	parseInt(document.form1.M_Qty_10.value) + 
	parseInt(document.form1.M_Qty_11.value) + 
	parseInt(document.form1.M_Qty_12.value) + 
	parseInt(document.form1.M_Qty_13.value) + 
	parseInt(document.form1.M_Qty_14.value) + 
	parseInt(document.form1.M_Qty_15.value) + 
	parseInt(document.form1.M_Qty_16.value) + 
	parseInt(document.form1.M_Qty_17.value) + 
	parseInt(document.form1.M_Qty_18.value) + 
	parseInt(document.form1.M_Qty_19.value) + 
	parseInt(document.form1.M_Qty_20.value) + 
	//parseInt(document.form1.M_Qty_21.value) + 
	parseInt(document.form1.M_Qty_22.value) + 
	parseInt(document.form1.M_Qty_23.value) + 
	parseInt(document.form1.M_Qty_24.value) + 
	parseInt(document.form1.M_Qty_25.value) + 
	parseInt(document.form1.M_Qty_26.value) + 
	parseInt(document.form1.M_Qty_27.value) + 
	parseInt(document.form1.M_Qty_28.value) + 
	parseInt(document.form1.M_Qty_29.value) + 
	parseInt(document.form1.M_Qty_30.value) + 
	parseInt(document.form1.M_Qty_32.value) + 
	parseInt(document.form1.M_Qty_33.value) + 
	parseInt(document.form1.M_Qty_34.value) + 
	parseInt(document.form1.M_Qty_35.value) +
	parseInt(document.form1.M_Qty_36.value) +
	parseInt(document.form1.M_Qty_37.value) +
	parseInt(document.form1.M_Qty_38.value) +
	parseInt(document.form1.M_Qty_39.value) +
	parseInt(document.form1.M_Qty_40.value) +
	parseInt(document.form1.M_Qty_41.value) +
	parseInt(document.form1.M_Qty_42.value) +
	parseInt(document.form1.M_Qty_43.value) +
	parseInt(document.form1.M_Qty_44.value) +
	parseInt(document.form1.M_Qty_45.value) +
	parseInt(document.form1.M_Qty_46.value) +
	parseInt(document.form1.M_Qty_47.value) +
	parseInt(document.form1.M_Qty_48.value) +
	parseInt(document.form1.M_Qty_49.value) +
	parseInt(document.form1.M_Qty_50.value) +
	parseInt(document.form1.M_Qty_52.value) +
	parseInt(document.form1.M_Qty_53.value) +
	parseInt(document.form1.M_Qty_54.value) +
	parseInt(document.form1.M_Qty_55.value);
	
	var qty2 = parseInt(document.form1.M_Qty_31.value) + 0;
	var qty3 = parseInt(document.form1.M_Qty_51.value) + 0;
	var qty = qty1 + qty2 + qty3;

	var postage1 = (qty1 > 0) ? qty1 - 1 + 3.50 : 0 ;
	var postage2 = (qty2 > 0) ? qty2 * 1.00 : 0 ;
	var postage3 = (qty3 > 0) ? qty3 * 1.00 : 0 ;
	var postage = (postage1 + postage2 + postage3 > 72.50) ? 72.50 : postage1 + postage2 + postage3;
	document.form1.M_Postage.value = formatCurrency(postage);
	
	var d1 = new Date;
	d1.setDate(31);
	d1.setMonth(7); // January = 0
	d1.setFullYear(2010); 
	var d2 = new Date;
	var dc = document.form1.M_Discount_Code.value;
	var Discount2 = (dc == 'LFBXX' && d2 < d1) ? subtotal * -.25 : 0;
	document.form1.M_Discount_Code_Calc.value = formatCurrency(Discount2);
	
	var Discount = (qty > 19) ? -10.00 : 0;
	document.form1.M_Discount.value = formatCurrency(Discount);
		
	var grandtotal = subtotal + Discount2 + Discount + postage;
	var M_EUR = grandtotal * document.form1.M_EUR.value;
	var M_USD = grandtotal * document.form1.M_USD.value;
	document.form1.M_Grandtotal.value = formatCurrency(grandtotal);
	document.form1.purchasefix.value = grandtotal;
	document.form1.elements["purchasefix-1"].value = M_EUR;
	document.form1.elements["purchasefix-2"].value = M_USD;

}

function formatCurrency(num) {
	num = num.toString().replace(/\$|\,/g,'');
	if(isNaN(num))
	num = "0";
	sign = (num == (num = Math.abs(num)));
	num = Math.floor(num*100+0.50000000001);
	pence = num%100;
	num = Math.floor(num/100).toString();
	if(pence<10)
	pence = "0" + pence;
	for (var i = 0; i < Math.floor((num.length-(1+i))/3); i++)
	num = num.substring(0,num.length-(4*i+3))+','+
	num.substring(num.length-(4*i+3));
	return (((sign)?'':'-') + '£' + num + '.' + pence);
}

function filterNum(str) {
	re = /^\£|,/g;
	// remove "£" and ","
	return str.replace(re, "");
}