/**
 * @file	estimator.js
 * Core script for the MOS cost estimator tool, plus tooltip script from parent site.
 * @requires	pricing.js	All pricing info is set there.  See notes for DOM ID requirements.
 */

 
 
 //////////////////////////////////////////////////////////

/**
 * Tooltip scripts (from parent site)
 */
function showToolTip(oAnchorTag,e)
{
	xOffset = 50;
	yOffset = 20;
	contentToDisplay = document.getElementById(oAnchorTag.id + "Content").innerHTML;
	if (contentToDisplay != null && contentToDisplay != '') {
		toolTipContainer = document.getElementById("tooltip");
		toolTipContainer.style.top = getMouseY(e) - yOffset + "px";
		toolTipContainer.style.left = getMouseX(e) + xOffset + "px";
		toolTipContainer.innerHTML = contentToDisplay;
		toolTipContainer.style.display = "block";
	}
};
function hideToolTip()
{
		toolTipContainer = document.getElementById("tooltip");
		toolTipContainer.style.display = "none";
};
function getMouseX(e)
{
	mouseX = 0;
	if (e.clientX)
 	{
		mouseX = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
	}
	return mouseX;
};
function getMouseY(e)
{
	mouseY = 0;
	if (e.clientY) 	{
		mouseY = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
	}
	return mouseY;

};
// end Tooltip scripts




/**
 * packed MOS lib and utilities scripts
 */
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if (typeof window.MOS == 'undefined') {
	alert('Application Error:\n\nRequired MOS object does not exist.');
};


/**
 * Estimator
 * @requires	config.js	All pricing data is set there as JSON object.  See notes there for DOM ID requirements.
 * @version		2.1
 * @created 	October 2008
 * @revised		09 March 2009  New optional decimals in pricing display.
 */
MOS.estimator = {

	/**
	 *  _defaults
	 *  Required IDs and CSS classes, etc.  Can be selectively overridden in invocation of init method on target page.
	 *  @example
	 *  	Estimator.init({
	 *			'subtotalClass':	'my_subtotal_class_is_better_than_yours'
	 *		});
	 */
	_defaults: {
		'formId':					'estimator',
		'grandTotalId':				'grand_total',
		'subtotalClass':			'subtotal',
		'toggleClass':				'toggle',
		'minMsgClass':				'minimum_seats_msg',
		'spanRowsClass':			'spanrow',
		'newClass':					'new',
		'existingClass':			'existing',
		'showClass':				'display',
		'hideClass':				'no_display',
		'bposToggleId':				'customer_type', /* select menu */
		'bposInputClass':			'bpos',
		'bposMessageId':			'bpos_message',
		'bposMessageWidth_default':	'240px',
		'bposMessageWidth_wide':	'585px',
		'currency':					'',
		'showPageHeader':			false,
		'show_decimal':				true
	},
	
	init: function(aParams) {
		
		/* Get the names of our goodies: */
		var formId = (aParams && aParams['formId'] && aParams['formId'] != '')
			? aParams['formId']
			: this._defaults['formId'];
		var grandTotalId = (aParams && aParams['grandTotalId'] && aParams['grandTotalId'] != '')
			? aParams['grandTotalId']
			: this._defaults['grandTotalId'];
		var subtotalClass = (aParams && aParams['subtotalClass'] && aParams['subtotalClass'] != '')
			? aParams['subtotalClass']
			: this._defaults['subtotalClass'];
		var toggleClass = (aParams && aParams['toggleClass'] && aParams['toggleClass'] != '')
			? aParams['toggleClass']
			: this._defaults['toggleClass'];
		var minMsgClass = (aParams && aParams['minMsgClass'] && aParams['minMsgClass'] != '')
			? aParams['minMsgClass']
			: this._defaults['minMsgClass'];		
		var spanRowsClass = (aParams && aParams['spanRowsClass'] && aParams['spanRowsClass'] != '')
			? aParams['spanRowsClass']
			: this._defaults['spanRowsClass'];
		var newClass = (aParams && aParams['newClass'] && aParams['newClass'] != '')
			? aParams['newClass']
			: this._defaults['newClass'];
		var existingClass = (aParams && aParams['existingClass'] && aParams['existingClass'] != '')
			? aParams['existingClass']
			: this._defaults['existingClass'];
		var showClass = (aParams && aParams['showClass'] && aParams['showClass'] != '')
			? aParams['showClass']
			: this._defaults['showClass'];
 		var hideClass = (aParams && aParams['hideClass'] && aParams['hideClass'] != '')
			? aParams['hideClass']
			: this._defaults['hideClass'];
			
		var bposToggleId = (aParams && aParams['bposToggleId'] && aParams['bposToggleId'] != '')
			? aParams['bposToggleId']
			: this._defaults['bposToggleId'];
			
		var bposInputClass = (aParams && aParams['bposInputClass'] && aParams['bposInputClass'] != '')
			? aParams['bposInputClass']
			: this._defaults['bposInputClass'];
		var bposMessageId = (aParams && aParams['bposMessageId'] && aParams['bposMessageId'] != '')
			? aParams['bposMessageId']
			: this._defaults['bposMessageId'];
		var bposMessageWidth_default = (aParams && aParams['bposMessageWidth_default'] && aParams['bposMessageWidth_default'] != '')
			? aParams['bposMessageWidth_default']
			: this._defaults['bposMessageWidth_default'];
		var bposMessageWidth_wide = (aParams && aParams['bposMessageWidth_wide'] && aParams['bposMessageWidth_wide'] != '')
			? aParams['bposMessageWidth_wide']
			: this._defaults['bposMessageWidth_wide'];
			
		var currencyCheck = this._getCurrency();
		this.currency = (currencyCheck && currencyCheck !='')
			? currencyCheck
			: this._defaults['currency'];
		
		if (Estimator.Prices['show_decimal']===true) {
			this.show_decimal = true;
		} else if (Estimator.Prices['show_decimal']===false) {
			this.show_decimal = false;
		} else {
			this.show_decimal = this._defaults['show_decimal'];
		}
		
		/* Collect our goodies into properties: */
		this._form 						= MOS.dom.getById(formId);
		this._grandTotalField 			= MOS.dom.getById(grandTotalId);
		this._subtotalFields 			= MOS.dom.getByClass(subtotalClass);
		this._toggleTDs 				= MOS.dom.getByClass(toggleClass);
		this._minMsgClass 				= MOS.dom.getByClass(minMsgClass);
		this._toggleMsg 				= MOS.dom.getByClass(toggleClass);
		this._SpanRows 					= MOS.dom.getByClass(spanRowsClass);
		this._newClass					= newClass;
		this._existingClass				= existingClass;
		this._showClass					= showClass;
		this._hideClass					= hideClass;
		this._bposToggleId				= bposToggleId;
		this._bposProducts 				= MOS.dom.getByClass(bposInputClass);
		this._bposMessage				= MOS.dom.getById(bposMessageId);
		this.bposMessageWidth_default 	= bposMessageWidth_default;
		this.bposMessageWidth_wide		= bposMessageWidth_wide;


		/** 
		 * UI Failsafe:  if page not in iframe/frame, it's a standalone page.
		 * Set flag to display inline header div (default CSS = display: none;)
		 */
		try {
			if (window.frameElement == null) { this.showPageHeader = true; };
		} catch (e) {
			/* do nothing */
		};
		this._drawPageHeader(); 
		

		this._existingFields = [];
			tmpExistingFields = MOS.dom.getByClass(this._existingClass);
			var tally = 0;  var len = tmpExistingFields.length;
			for (var i=0; i< len; i++) {
				if (tmpExistingFields[i].tagName.toLowerCase() == 'input') {
					this._existingFields[tally] = tmpExistingFields[i];
					tally++;
				};
			};
			tmpExistingFields = null;
		
		this._newFields = [];
			tmpNewFields = MOS.dom.getByClass(this._newClass);
			var tally = 0;  var len = tmpNewFields.length;
			for (var i=0; i<len; i++) {
				if (tmpNewFields[i].tagName.toLowerCase() == 'input') {
					this._newFields[tally] = tmpNewFields[i];
					tally++;
				};
			};
			tmpNewFields = null;
			
		/* Now confirm we're good to go, and complain if not: */
		var message = [];
		if (!this._form) { message.push(' * Form not found by script.'); };
		if (typeof Estimator.Prices == 'undefined') { message.push(' * Pricing data not found.'); };
		if (this._existingFields.length == 0) { message.push(' * Data fields for existing seats not found.'); };
		if (!this._subtotalFields || this._subtotalFields.length == 0) { message.push(' * Subtotal form fields not found.'); };
		if (!this._grandTotalField) { message.push(' * Grand total form field not found.'); };
		if (message.length > 0) {
			var alertText = 'Application Error:\n\n' 
				+ message.join('\n') 
				+'\n\nThis tool may not function correctly.\nWe apologize for the inconvenience.';
			alert(alertText);
		};
		
		
		/* PROCEED */
		if (!alertText) {
			/* show/hide products per config settings in config.js */
			this._displayProducts();
			/* get current value of form toggler */
			var toggleSelect = document.getElementById(this._defaults['bposToggleId']) || Estimator._newClass;
			/* hide designated fields */
			this.toggleFormFields(toggleSelect);
		};
		
		/* clean up */
		message = null; alertText = null;
		
	},
	
	_drawPageHeader: function(sId) {
		var headerId = sId || 'header';
		if (this.showPageHeader === true) {
			var headerDiv = MOS.dom.getById(headerId);
			if (headerDiv) {
				/* show the inline header div */
				headerDiv.style.display = 'block'; /* yes, plz set 'block' explicitly */
			} else {
				/* Final failsafe: dynamically insert missing header div & HTML (in English) */
				var content = MOS.dom.getById('content');
				var headerDiv = MOS.dom.create('div',{id: headerId});
				headerDiv.innerHTML = '<div class="inner1"><div class="inner2">'
					+'<div class="headline"><h1>Microsoft Online Services Cost Estimator</h1></div>'
					+'<div class="button">'
						+'<a title="Close window" href="javascript:window.close();"><span>Close this window</span></a>'
					+'</div>'
					+'<div class="clear"></div></div></div>';
				var parentNode = content.parentNode;
				parentNode.insertBefore(headerDiv,content);
			};
		};
	},
	
	clearForm: function() {
		this._form.reset();
		this.showBposMessage();
	},
	

	
	/**
	 *  _displayProducts
	 *  Actually, this hides table rows in the form based on False boolean settings in Estimator.Prices['display_products'].
	 *  @require	config.js (or localized equivalent)	See file for further instructions.
	 */
	_displayProducts: function(){
		if (!Estimator.Prices['display_products']) { return false; };
		var hide_these = new Array();
		for (product in Estimator.Prices['display_products']) {
			if (Estimator.Prices['display_products'][product] === false) {
				var id= (product=='buy_button') ? product : 'row_'+ product;
				if (product == 'Business_Productivity_Online_Standard_Suite') {
					var id2 = id +'_B';
				};
				var tmp = document.getElementById(id);
				if (tmp) {
					tmp.style.display = 'none';
				};
				tmp = null;
				if (id2) {
					/* hide second row of BPOS */
					var tmp = document.getElementById(id2);
					if (tmp) {
						tmp.style.display = 'none';
					};
					tmp = null;
				};
			};
		};
	},
	
	/**
	 * _getCurrency
	 * Retrieve currency property of the Prices object, set in pricing.js
	 * @return 	string	Currency symbol, suitable for display in a form input.
	 */
	_getCurrency: function() {
		var curr = Estimator.Prices['currency'];
		if (curr.indexOf('$')===0 || curr == '') {
			/* dollar or null: accept */
		} else if (curr.indexOf('&')===0) {
			curr = MOS.utilities.htmlEntityDecode(curr);
		} else if (curr.match(/[a-zA-Z]/g) != null) {
			/* alpha: accept, but make sure has trailing space */
			if ( curr.substr(curr.length-1,curr.length) != ' ') {
				curr = curr +' ';
			}
		} else {
			/* we assume it's UTF-8 */
			alert('Error: currency setting may not use UTF-8 encoding. Sorry.');
			curr = false;
		};
		return (curr) ? curr : false;
	},
	
	

	/** 
	 * Locate appropriate price range for iCount.
	 * @return	mixed	name of price range within JSON object (oPrices)
	 */
	_findPriceRange: function(oPrices, iCount) {
		// oPrices = pricing JSON object
		if (!oPrices || oPrices == '' || typeof oPrices != 'object') { return false; };
		if (typeof iCount != 'number') { return false; };
		
		var aTmp = new Array();
		for (var prop in oPrices) { aTmp.push(prop); };
		
		var result = false;
		var len = aTmp.length;

		
		/* Deal with Chrome's "broken" object sorting */
		if ( navigator.userAgent.toLowerCase().indexOf('chrome') > -1 ){
			aTmp.sort(function(a,b){return a - b});
		} /* end Chrome hack */
		
		for (var i=0; i<len; i++) {	
			if (i === 0) {
				if (iCount <= parseInt(aTmp[i])) {
					result = parseInt(aTmp[i]);
					break;
				} else {
					if (iCount > parseInt(aTmp[i]) && iCount < parseInt(aTmp[i+1])) {
						result = parseInt(aTmp[i+1]);
						break;
					};
				};
			} else {
				var iTmp = i+1;
				/* 	if count = top of tier, use top of tier
					if count > top of tier && less than next top of tier:  use next top of tier
					else:  keep looking
				*/
				if (iCount === parseInt(aTmp[i])) {
					result = parseInt(aTmp[i]);
					break;
				} else if (iCount > parseInt(aTmp[i]) && iCount <= parseInt(aTmp[iTmp]) ) {
					result = parseInt(aTmp[iTmp]);
					break;
				};
			};
		}; // end for
		if (!result) { result = 'maximum'; };
		return result;
	},
	
	getPrice: function(oPrices, iNumber, pDoCalc) {
		if (!oPrices || oPrices == '' || typeof oPrices != 'object') { return false; };
		if (typeof iNumber != 'number') { return false; };
		pDoCalc= (pDoCalc) ? true : false;
		var range = this._findPriceRange(oPrices, iNumber);
		var price = oPrices[range].toFixed(2);
		if (pDoCalc) { var result = iNumber * price; }
		 else { var result = price; };
		
		return result.toFixed(2);
	},
	
	showBposMessage: function() {
		if (!this._bposProducts) { return false; };
		var exchangeFlag = false;
		var sharepointFlag = false;
		var tally = 0;
		var len = this._bposProducts.length;
		for (var i=0; i<len; i++) {
			if (!isNaN(this._bposProducts[i].value) && this._bposProducts[i].value > 0) {
				tally++;
				if ( this._bposProducts[i].id.match(/exchange/gi) ) {
					exchangeFlag = true;
				};
				if ( this._bposProducts[i].id.match(/sharepoint/gi) ) {
					sharepointFlag = true;
				};
			};
		};
		if ((exchangeFlag && sharepointFlag) || (tally >= 3)) {
			this._bposMessage.style.display = 'inline';
			this._setBposMessageWidth();
		} else {
			this._bposMessage.style.display = 'none';
		};
	},
	
	_setBposMessageWidth: function() {
		var span = this._checkSpanRows();
		if (span == 4) {
			this._bposMessage.style.width = this.bposMessageWidth_wide;
		} else {
			this._bposMessage.style.width = this.bposMessageWidth_default;
		};
	},
	
	_checkSpanRows: function() {
		var ret = false;
		for (var i=0; i<1; i++) { /* just do once */
			ret = this._SpanRows[i].colSpan
		};
		return ret;
	},
	
	updateGrandTotal: function() {
		if (!this._grandTotalField || !this._subtotalFields) { return false; };
		var len = this._subtotalFields.length;
		var subsTmp = 0;
		var err = 0;
		for (var i=0; i<len; i++) {
			var st = this._subtotalFields[i].value;
			/* strip currency symbol if present (likely, but don't assume) */
			if (st.indexOf(this.currency) > -1) {
				st = st.substr(this.currency.length);
			}
			st = parseFloat( MOS.utilities.stripCommas(st) );
			if (isNaN(st)) { 
				/* do nothing - null value (or perhaps invalid) */
			} else {
				subsTmp = subsTmp + st;
			};
		};
		
		this._grandTotalField.value = this._formatCurrency(subsTmp);
	},
	
	_findOutputField: function(cssClass) {
		var outputField = false;
		for (var i=0; i< this._subtotalFields.length; i++) {
			if ( MOS.dom.hasClass(this._subtotalFields[i], cssClass) ) {
				outputField = this._subtotalFields[i];
				break;
			};
		};
		return outputField;
	},
	_findInputFields: function(css) {
		/* gather designated input groups by "axis" class & remove the subtotal field from the collection */
		var thisInputGroup = MOS.dom.getByClass(css);
		for (var i=0; i< thisInputGroup.length; i++) {
			if ( MOS.dom.hasClass(thisInputGroup[i], 'subtotal') ) {
				thisInputGroup.splice(i, 1);
			};
		};
		return thisInputGroup;
	},
	_validateInput: function(fInput) {
		if (!fInput) { return false; };
		var val = fInput.value;
		while (val.match(/^0/)) {
			val = val.replace(/^0/,'');	
		};
		val = val.replace(/[a-zA-Z\,\$\.\!\@\#\%\^\&\*\(\)\-\+\=\<\>\?\{\}\[\]\~\`\/]/,'');
		fInput.value = val;		
	},
	
	processChange: function(fInput) {
		if (!fInput) { return false; };
		this._validateInput(fInput);
		//	this.updateGrandTotal();
		//	this.showBposMessage();
	},
	
	
	/**
	 * _getFormAxis
	 * @param 	{fInput}	form input object
	 * @return	{Object Array}	outputField: subtotal input object for the axis
	 *							thisInputGroup: array of user inputs for the axis
	 */
	_getFormAxis: function(fInput) {
		if (!fInput) { return false; }
		/* extract our row identifier:  .axis{number} */
		var cssTmp = fInput.className.split(' ');
		for (var i=0; i<cssTmp.length; i++) {
			var x = cssTmp[i].substring(0,4);
			if (x == 'axis') { 
				var css = cssTmp[i];
			};
		};
		if (!css) { alert('Error: required CSS class not found'); };
		
		/* get our input collections: */
		var outputField = this._findOutputField(css);
			if (!outputField) { alert('Error: subtotal field not found.'); };
		var thisInputGroup = this._findInputFields(css);
			if (!thisInputGroup) { alert('Error: user count fields not found.'); };
		
		var Axis = {
			'outputField': outputField,
			'thisInputGroup': thisInputGroup
		};
		
		return Axis;
	},
	
	
	_isBposEcal: function(sId) {
		if (!sId) { return false; };
		return (sId.match(/ecal$/i)) ? true : false;
	},
	_isBposCoreCal: function(sId) {
		if (!sId) { return false; };
		return (sId.match(/core_cal$/i)) ? true : false;
	},
	
	toggleFormFields: function(fSelection) {
		if (!this._toggleTDs) { return false; };
		var TDlen = this._toggleTDs.length;
		var MSGlen = this._minMsgClass.length;
		var val = (fSelection.value) ? fSelection.value : fSelection;
			
		/* handle colspans for the wide rows */
		var SpanLen = this._SpanRows.length;
		var wideSpan = 4;
		var thinSpan = 2;

		switch (val) {
			case 'new':
				for (var i=0; i<TDlen; i++) {
					MOS.dom.swapClass(this._toggleTDs[i], this._showClass, this._hideClass);
				};
				for (var i=0; i<MSGlen; i++) {
					MOS.dom.swapClass(this._minMsgClass[i], this._hideClass, '');
				};
				document.getElementById('h2existing').style.display = 'none';
				document.getElementById('h2new').style.display = 'block';
				
				//	document.getElementById('minimum_seats_msg').style.display = 'block';
				
				for (var i=0; i<SpanLen; i++) {
					this._SpanRows[i].colSpan = thinSpan;
				};
				this._clearHiddenFields();
				break;
			
			default:
				for (var i=0; i<TDlen; i++) {
					MOS.dom.swapClass(this._toggleTDs[i], this._hideClass, this._showClass);
				};
				for (var i=0; i<MSGlen; i++) {
					MOS.dom.swapClass(this._minMsgClass[i], this._showClass, this._hideClass);
				};
				document.getElementById('h2existing').style.display = 'block';
				document.getElementById('h2new').style.display = 'none';
				
				//	document.getElementById('minimum_seats_msg').style.display = 'none';

				for (var i=0; i<SpanLen; i++) {
					this._SpanRows[i].colSpan = wideSpan;
				};
		}; // end switch
		// reset width of upsell message as needed
		this._setBposMessageWidth();
	},
	
	_clearHiddenFields: function() {
		if (!this._existingFields || this._existingFields.length==0) { return false; };
		var len = this._existingFields.length;
		for (var i=0; i<len; i++) {
			this._existingFields[i].value = '';
			this.processChange(this._existingFields[i])
		};
	},
	
	show: function(aLink){
		return true;
	},
	
	
	/* Process subtotaling for one axis */
	_processExecute: function(thisInputGroup, outputField) {
		if (!outputField) 	{ alert('Error: subtotal field not found.'); };
		if (!thisInputGroup) { alert('Error: count fields not found.'); };
		
		/* gather data from inputs in group */
		var values = new Array;
		for (var i=0; i< thisInputGroup.length; i++) {
			var tmpVal 	= parseInt(thisInputGroup[i].value);
			if (MOS.dom.hasClass(thisInputGroup[i], this._existingClass)) {
				values[i] = {
					'type': this._existingClass,
					'id': thisInputGroup[i].id,
					'val': tmpVal,
					'css': thisInputGroup[i].className.split(' ')
				};
			} else {
				values[i] = {
					'type': this._newClass,
					'id': thisInputGroup[i].id,
					'val': tmpVal,
					'css': thisInputGroup[i].className.split(' ')
				};
			};
		}; /* end for */
		
		this._calculate(values, outputField);
		
	},  // end _processExecute
	
	
	/**
	 *  _calculate
	 *  Calculate and output subtotal for a single form axis.
	 *  @param	{values}	Custom array of input properties for one axis (set in _processExecute)
	 *  @param	{outputField}	Form input object of subtotal for that axis
	 */
	_calculate: function(values, outputField) {
		if (!values) { alert('Error: no values to calculate.'); }
		if (!outputField) { alert('Error: no subotal field to calculate to.'); }
		
		/* tally seats (new & old) */
		var totalSeats = 0;
		var fullPrice = 0;
		  var fullPriceId = false;
		var discount1 = 0;
		  var discount1Id = false;
		var discount2 = 0;
		  var discount2Id = false;
		
		for (var i=0; i<values.length; i++) {
			
			/* tally new seats */
			if (values[i].type == this._newClass && !isNaN(values[i].val)) {
				totalSeats = values[i].val;
				fullPrice = values[i].val;
				fullPriceId = values[i].id;
			};
		
			/* tally existing seats */
			if (values[i].type == this._existingClass && !isNaN(values[i].val)) {
				/* assign BPOS Core CAL seats to secondary reducor var */
				if ( this._isBposCoreCal( values[i].id ) ) {
					discount2 = discount2 + values[i].val;
					discount2Id = values[i].id;
				}
				else {
					discount1 = discount1 + values[i].val;
					discount1Id = values[i].id;
				};
			};
		}; /* end for */
		
		/* leaven our discount tallies */
		if (discount1>0 && discount1>totalSeats) {
			discount1 = totalSeats;
		};
		if (discount2>0 && discount2>totalSeats) {
			discount2 = totalSeats - discount1;
		};
		
		/* decrement fullPrice tally if/as appropriate */
		if (!isNaN(fullPrice) && fullPrice > 0) {
			if (!isNaN(discount1) && discount1>0) {
				fullPrice = fullPrice - discount1;
			};
		};
		/* if there's anything left... */
		if (fullPrice > 0 && (!isNaN(discount2) && discount2>0)) {
			fullPrice = fullPrice - discount2;
		} else {
			discount2 = 0;
		};
		/* sanity check */
		if (isNaN(fullPrice)) { fullPrice = 0; };
		
		
		var subtotal = 0;
		if (totalSeats > 0) {
			if (fullPrice > 0) {
				subtotal = parseFloat(subtotal)
						+  parseFloat( this.getPrice(Estimator.Prices[fullPriceId], fullPrice, true) );
			};
			if (discount1 > 0) {
				subtotal = parseFloat(subtotal)
						+  parseFloat( this.getPrice(Estimator.Prices[discount1Id], discount1, true) );
			};
			if (discount2 > 0) {
				subtotal = parseFloat(subtotal)
						+  parseFloat( this.getPrice(Estimator.Prices[discount2Id], discount2, true) );
			};
		};
		
		outputField.value = this._formatCurrency(subtotal);
		
	}, /* end _calculate */
	
	
	_formatCurrency: function(iNum){
		if (!iNum || iNum==null || typeof iNum != 'number' || iNum<=0) { return ''; }
		iNum= (this.show_decimal) ? iNum.toFixed(2) : parseInt(iNum);
		return (isNaN(iNum) || iNum<=0 || iNum===false) ? '' : this.currency + MOS.utilities.addCommas(iNum);
	},
	
	
	doSubmit: function() {
		if (!this._newFields || this._newFields.length === 0) {
			alert('Error: form fields not found by script.');
		}
		var len = this._newFields.length;
		for (var i=0; i<len; i++) {
			var stuff = this._getFormAxis(this._newFields[i]);
			this._processExecute(stuff['thisInputGroup'], stuff['outputField']);
		};
		
		this.updateGrandTotal();
		this.showBposMessage();
	}
	

}; // end MOS.estimator
Estimator = MOS.estimator;