/*	A list of products marked for deletion
    		Built dynamically as and when the delete checkboxes are checked/unchecked
    	*/
    	var deletedProducts = new Array();
    	
    	function customizeProduct(productId)
    	{
    		var tableRows = document.getElementsByTagName('tr');
    		for(var i=0;i<tableRows.length;i++)
    		{
    			if (tableRows[i].id)
    			{
    				var rowId = tableRows[i].id;
    				if (rowId.indexOf('componentData_' + productId) >= 0)
    				{
    					hideTableRow(rowId);
    				}
    			}
    		}
    	}
    	function hideTableRow(id) {
    		if (id) {
    			var item = document.getElementById(id);
    			if (item.style.display == 'none') {
    				item.style.display = '';
    			} else {
    				item.style.display = 'none';
    			}
    		}
    	}

    	/*Hides a table row*/
    	function hideRow(id,force) {
    		var item = document.getElementById('componentData_' + id);
    		var ingredientRow = document.getElementById('ingredients_' + id);
    		if (force == 'yes') {
    			item.style.display = 'none';
    			ingredientRow.style.display = 'none';
    			return;
    		}
    		if (item.style.display == '') {
    			item.style.display = 'none';
    		} else {
    			item.style.display = '';
    		}
    	}

    	/*Toggle the delete flag
    	  If any delete_ checkboxes are checked, toggle to 'yes'
    	  If none are checked, change to ''
    	*/
    	function markDeleteFlag() {
    		var inputElements = document.getElementsByTagName('input');
    		var counter = deletedProducts.length;
    		for(var i=0;i<inputElements.length;i++) {
    			var inputElement = inputElements[i];
				if (inputElement.id.indexOf('deleteProduct_') >= 0 && inputElement.checked) {
					document.getElementById('deleteFlag').value = 'yes';
					if (indexOf(deletedProducts,inputElement.id) < 0) {
						deletedProducts[counter++] = inputElement.id;
					}
				} else if (inputElement.id.indexOf('deleteProduct_') >= 0 && !inputElement.checked) {
					if (indexOf(deletedProducts,inputElement.id) >= 0 ) {
						deletedProducts[indexOf(deletedProducts,inputElement.id)] = '';
					}
				}
    		}
    		if (document.getElementById('deleteFlag').value != 'yes') {
    			document.getElementById('deleteFlag').value = '';
    		}
    	}

    	function updateQuantities() {
    		var productQuantities = '';
    		var inputElements = document.getElementsByTagName('input');
    		for (var i=0;i<inputElements.length;i++) {
    			var elementId = inputElements[i].id;
    			if (elementId.indexOf('quantity_') >= 0) {
    				var elementValue = inputElements[i].value;
    				if (elementValue.length == 0) {
    					elementValue = '0';
    				}

    				/*If the quantity is 0, then hide it. The servlet deletes it from the user's list*/
    				if (elementValue == '0') {
    					//Parse the name id, get the productId and hide the tbody
    					var productId = elementId.substr(9,elementId.lastIndexOf('_'));
    					document.getElementById('productData_' + productId).style.display = 'none';
    					hideRow(productId,'yes');
    				}

    				var quantity = inputElements[i].id + '_' + elementValue;
    				if (productQuantities.length == 0) {
    					productQuantities += quantity;
    				} else {
    					productQuantities = productQuantities + ',' + quantity;
    				}
    			}
    		}
    		return productQuantities;
    	}

    	/*Recalculate Meal Totals*/
    	function recalculateMeal(serverName) {
    		var quantities = updateQuantities();

    		//Hide all deleted products.
    		for (var i=0;i<deletedProducts.length;i++) {
    			var productId = deletedProducts[i].substring(deletedProducts[i].indexOf('_') + 1,deletedProducts[i].length);
    			if (productId != '') {
    				document.getElementById('productData_' + productId).style.display = 'none';
    				hideRow(productId,'yes');
    			}
    		}

    		//Loop through components and add all selected components into the components list.
    		var inputElements = document.getElementsByTagName('input');
    		var componentsList = '';
    		for (var i=0;i<inputElements.length;i++) {
    			var elementId = inputElements[i].id;
    			if (elementId.indexOf('component_') >= 0 && inputElements[i].checked) {
    				if (componentsList.length == 0) {
    					componentsList = elementId;
    				} else {
    					componentsList = componentsList + ',' + elementId;
    				}
    			}
    		}

    		updateNutritionTable(deletedProducts.toString(),componentsList,quantities, serverName);
    		
    		/*
    		//Hide trans fat note if when removing fries
    		//Not good for more than one fries, so removed for now - jtreadway
			if (productId == 18 || productId == 19 || productId == 21 || productId == 22 || productId == 23) {
				document.getElementById('transfatnote').style.display = 'none';
			}
    		*/	
    	}

    	/*Utility function to check if an element is present in an array*/
    	function indexOf(arrayObject,keyString) {
    		for (var i=0;i<arrayObject.length;i++) {
    			if (arrayObject[i] == keyString) {
    				return i;
    			}
    		}
    		return -1;
    	}
    	
    	function printTable() {
    		var tableRows = document.getElementsByTagName('tbody');
    		for(var i=0;i<tableRows.length;i++)
    		{
    			if (tableRows[i].id)
    			{
    				var rowId = tableRows[i].id;
    				if (rowId.indexOf('componentData_') >= 0)
    				{
						document.getElementById(rowId).style.display = '';
    				}
    			}
    		}
			window.print();			
    	}