// This mmCalc Function goes through each field in a form

// checks if productX has a value, if so it builds the cart

// and totals the price. If productX does not have a value

// no price is shown and the customer is told to select a value

// Also validates form



// Version 2.33



function mmCalc(thatForm){

	var intFormFields, intNumberDropDowns, curPriceArray, strProductElement, intUnits;

	var strProductList, intUserID, intFormUserID, strPriceBandsArray, intPriceBands, strPriceBandsDivisionsArray;

	var blnPriceBands = false;

	var blnPriceBandsUpper = false;

	var blnElementInvalid = false;

	var strLocalMainProductName = strMainProductName;

	if (strLocalMainProductName == null) {strLocalMainProductName = thatForm.strMainProductName.value};

	var blnSubmit = false;

	var strOtherCurrencySymbol = '';

	if(thatForm.strOtherCurrencySymbol){strOtherCurrencySymbol = thatForm.strOtherCurrencySymbol.value};

	var curPriceOtherCurrencyRate = 1;

	if(thatForm.dbOtherCurrencyRate){curPriceOtherCurrencyRate = thatForm.dbOtherCurrencyRate.value};



	if(arguments.length>1){blnSubmit = true;}

	

	intNumberDropDowns = parseInt(thatForm.elements['numberSelections'].value);

	intFormFields = thatForm.elements.length;

	intNumberDropDowns += 1;



	curPrice = 0;

	intUnits = 0;

	strProductList = "";

	intUserID = "61270672";

	intFormUserID = thatForm.userid.value;

	

		// Checks userid valid

	if (intFormUserID != intUserID){

		thatForm.strMessage.value="Please use correct User ID "+intUserID;

		thatForm.curCost.value="";

		return false;

	}

	

	// Calculates quantity bands if present

	for (i=0;i<intFormFields;i++){

		if (thatForm.elements[i].name.indexOf('qtyBands') > -1){

		

			strPriceBandsArray = thatForm.elements[i].value.split("~");

			intPriceBands = strPriceBandsArray.length;

			if (intPriceBands > 0) {

				blnPriceBands = true;

			}else{

				break;			

			}

			

			var intQtyArray = new Array(intPriceBands-1);

			var curPriceArray = new Array(intPriceBands-1);



			// Create price and strProductList

			for (p=0;p<intPriceBands;p++){

				strPriceBandsDivisionsArray = strPriceBandsArray[p].split(":");

				intQtyArray[p] = strPriceBandsDivisionsArray[0] - 0;

				curPriceArray[p] = strPriceBandsDivisionsArray[1] - 0;

			}

			

			break;

		}

	}

	

	// Is upper limit set?

	for (i=0;i<intFormFields;i++){

		if (thatForm.elements[i].name.indexOf('qtyBandsRoundUp') > -1){

			blnPriceBandsUpper = thatForm.elements[i].value.toUpperCase();

			if (blnPriceBandsUpper == 'TRUE'){

				blnPriceBandsUpper = true;

			}else{

				blnPriceBandsUpper = false

			}

		}

	}

	

// Calculates price if price bands given

var intCurrentQtyCheck = -1;

			

for (j=0;j<intPriceBands;j++){

	if ((thatForm.qty.value > intCurrentQtyCheck) && (thatForm.qty.value <= intQtyArray[j])){

		curPrice = curPriceArray[j];

		if (blnPriceBandsUpper) {

			thatForm.qty.value = intQtyArray[j];

		}	

		break;

	}

	intCurrentQtyCheck = intQtyArray[j];

}



if (blnPriceBands == true && curPrice == 0){

	curPrice = curPriceArray[intPriceBands-1];

	curPriceArray[j] = curPrice;

	if (blnPriceBandsUpper) {

		thatForm.qty.value = intQtyArray[intPriceBands-1];

		intQtyArray[j] = intQtyArray[intPriceBands-1];

	}

}



	if (blnPriceBands == false){



		// Checks each productX drop-down

		for (var i = 1; i<intFormFields; i++) {



			// Gets price and name of product

			// Checks if element is checkbox and adds to price if checked

			var strElementType = thatForm.elements[i].type;

			

			if (strElementType=='checkbox' || strElementType=='radio'){

				if (thatForm.elements[i].checked){

					strProductElement = thatForm.elements[i].value;

				}else{

					strProductElement = ":0.00";

				}

			}else{

				strProductElement = thatForm.elements[i].value;

			}

			

			// Checks productItem i.e. no price options

			if (thatForm.elements[i].name.indexOf('productItem') > -1){

				strProductElement = strProductElement + ":0.00";

			}

			

			// Checks if product is required

			if (thatForm.elements[i].name.indexOf('productItemRequired') > -1){

			

				strProductElement = strProductElement + ":0.00";

				if (thatForm.elements[i].value=='') {blnElementInvalid = true;}

			}

			

			if (thatForm.elements[i].disabled==false){		

				curPriceArray = strProductElement.split(":");

				if (curPriceArray[1]!=null && isNaN(curPriceArray[1])==false) {curPrice += parseFloat(curPriceArray[1])};

				if (curPriceArray[1]!=null && isNaN(curPriceArray[1])==false) {



					if (trim(curPriceArray[0])!='') {

						strProductList = strProductList + strProductDelimeter + " " + curPriceArray[0];

					}

				}

			}

			

			// Gets units per options

			if (curPriceArray[2]!= null) intUnits += parseFloat(curPriceArray[2]);

		

			for (var p = 1; p<intNumberDropDowns; p++) {						

				if ((thatForm.elements[i].name.indexOf('product'+p) > -1)) {

					

					// Ensures product type is selected

					if ((thatForm.elements[i].value == "")) {

						thatForm.strMessage.value=strTellCustomer;

						thatForm.curCost.value="";

						return false;

					}

				}

			}

		}

	}

	 

	// Creates price for product

	curPrice = currency(curPrice);

	curDisplayPrice = currency(curPrice*thatForm.qty.value);

	curPriceOtherCurrencyRate  = currency(curDisplayPrice*curPriceOtherCurrencyRate);



	// Displays price

	thatForm.curCost.value = strCurrency+curDisplayPrice;

	thatForm.price.value = curPrice;

	if (strOtherCurrencySymbol != ''){

		thatForm.strMessage.value = "(Approx. Total "+strOtherCurrencySymbol+curPriceOtherCurrencyRate+")";

	}else{

		thatForm.strMessage.value = "Total";

	}

	

	if (blnPriceBands) {

		thatForm.strMessage.value="Total @ "+strCurrency+curPriceArray[j]+" per item";

		if (blnPriceBandsUpper) {thatForm.strMessage.value=thatForm.strMessage.value+' in packs of '+intQtyArray[j]}



	}

	

	// Updates Mals Units field

	thatForm.units.value = intUnits;

	

	// Updates Mals product field

	strProductList = strLocalMainProductName + strProductList;

	if (blnPriceBands) {strProductList = thatForm.product.value;}

	strProductList = cleanProduct(strProductList);

	thatForm.product.value = strProductList;



	// Submits form (if applicable) if all required fields have a value

	if (blnSubmit){

		if(blnElementInvalid){

			alert(strRequiredFieldText);

			return false;

		}

	}

	return true;

}



function cleanProduct(strProduct){

	// Gets rid of all [strArrayNames] if used in 

	// conjunction with Dynamic List Script

	// Also, gets rid of (strImageName) if used in

	// conjunction with Image Options Script

	

	var intArrayNameStart = 0;

	var intArrayNameEnd = 0; 

	var strProductTemp = "";

	var strProductTempDelete = "";

	

	strProductTemp = strProduct;

	

	// Loops each text character in string and removes [arraynames]

	for (var i=0;i<strProduct.length;i++){

		if (strProduct.substring(i, i+1)=='['){intArrayNameStart = (i)};

		if (strProduct.substring(i, i+1)==']'){intArrayNameEnd = (i+1)};

		

		if (intArrayNameEnd>0){

			strProductTempDelete = strProduct.substring(intArrayNameStart, intArrayNameEnd);

			strProductTemp = strProductTemp.replace(strProductTempDelete, "");

			intArrayNameEnd = 0;

			intArrayNameStart = 0;

		}

	}

	

	for (var i=0;i<strProduct.length;i++){

		if (strProduct.substring(i, i+1)=='('){intArrayNameStart = (i)};

		if (strProduct.substring(i, i+1)==')'){intArrayNameEnd = (i+1)};

		

		if (intArrayNameEnd>0){

			strProductTempDelete = strProduct.substring(intArrayNameStart, intArrayNameEnd);

			strProductTemp = strProductTemp.replace(strProductTempDelete, "");

			intArrayNameEnd = 0;

			intArrayNameStart = 0;

		}

	}



	return strProductTemp;

}



function currency(dbAmount) { 

	// returns the amount in the .99 format 

	dbAmount -= 0; 

	dbAmount = (Math.round(dbAmount*100))/100; 

	return (dbAmount == Math.floor(dbAmount)) ? dbAmount + '.00' : ( (dbAmount*10 == Math.floor(dbAmount*10)) ? dbAmount + '0' : dbAmount); 

} 



function trim(strText) { 

    // this will get rid of leading spaces 

    while (strText.substring(0,1) == ' ') 

        strText = strText.substring(1, strText.length);



    // this will get rid of trailing spaces 

    while (strText.substring(strText.length-1,strText.length) == ' ')

        strText = strText.substring(0, strText.length-1);



   return strText;

}



function getIndex(thatForm, thatElement) {

	var intFormFields = thatForm.elements.length;

    for (var i=0;i<intFormFields;i++){

        if (thatElement == thatForm.elements[i]) return i;

	}

    return -1;

}