function getStockByCombination(form)
{
	var element;
	var formParams = new Array();
	
	for (var i = 0; i < form.elements.length; i++ )
	{
		element = form.elements[i];
		if( element.getAttribute('affectsstock') && element.getAttribute('affectsstock') == 1 )
		{
			if( element.tagName.toUpperCase() != 'INPUT' ||element.type.toUpperCase() != 'CHECKBOX' && element.checked == true  )
			  formParams.push(encodeURIComponent(element.name) + '=' + encodeURIComponent(element.value));
		}
		else if(element.name.toUpperCase() == 'PRODUCTID')
		{
			formParams.push(encodeURIComponent(element.name) + '=' + encodeURIComponent(element.value));
			el = document.getElementById('addProduct'+element.value );
			el.style.display = 'none';
			var loadingImage = document.createElement('img');
			loadingImage.src = shop.url + '/ecommerce/images/icons/smallLoading.gif';
			loadingImage.id = 'loadingImage' + element.value;
			el.parentNode.appendChild(loadingImage);
		}
	}
	formParams = formParams.join("&");
	
	var frmOpts = {};
	frmOpts.method = 'POST';
	frmOpts.url = shop.url + '/ajaxTemplates/products/checkStockByCombination.cfm';
	frmOpts.headers = {};
	frmOpts.headers['Content-Type'] = 'application/x-www-form-urlencoded';
	frmOpts.postData = formParams;	
	Spry.Utils.loadURL('post', frmOpts.url, true, setStockByCombination, frmOpts);
}





function setStockByCombination(response)
{
	var objResponse = eval('(' + response.xhRequest.responseText + ')');
	var productId = parseInt(objResponse.PRODUCTID);
	var buyButton = document.getElementById('addProduct'+productId );
	var	trafficLightImage = document.getElementById('trafficLight');
	var stock = parseInt(objResponse.STOCK);
	
	if( stock == 0 )
	{
		//no stock
		if(objResponse.ALLOWRESERVE)
		{
			//allow reserve
			if(buyButton.className != "prodDetailBuyButton")
				buyButton.value = languageSheet.lblReserve;
			buyButton.disabled = false; 
			trafficLightImage.src = shop.url + '/ecommerce/images/icons/lightYellow.gif';//naranja
		}
		else
		{
			//disallow buy
			if(buyButton.className != "prodDetailBuyButton")
				buyButton.value = languageSheet.lblInexistentCombination;
			buyButton.disabled = true; 
			trafficLightImage.src = shop.url + '/ecommerce/images/icons/lightRed.gif';//Rojo
		}
	}
	else if( stock == -1 )
	{
		//disallow buy
		if(buyButton.className != "prodDetailBuyButton")
			buyButton.value = languageSheet.lblInexistentCombination;
		buyButton.disabled = true; 
		trafficLightImage.src = shop.url + '/ecommerce/images/icons/lightRed.gif';//Rojo
	}
	else
	{
		//stock available	
		if(buyButton.className != "prodDetailBuyButton")
			buyButton.value = languageSheet.lblBuy;
		buyButton.disabled = false; 
		trafficLightImage.src = shop.url + '/ecommerce/images/icons/lightGreen.gif'; //verde
	}
	
	$('loadingImage' + productId).destroy();
	buyButton.style.display = '';
}




function initFormFields(form)
{
	var form = document.getElementById(form);
	if(form == null) return;
	
	Spry.Widget.Form.destroy(form);

	for (var i = 0; i < form.elements.length; i++ )
	{
			element = form.elements[i];
			
			fieldType = element.getAttribute('fieldType');
			requiredField = element.getAttribute('requiredField');
			
			/*if( element.getAttribute('affectsstock') == 1 )
			{
				$(element).addEvent('change', function(){ getStockByCombination(form); } );
			}*/
			if( element.getAttribute('affectsstock') == 1 )

				{
				
				if($(element).type == "select-one")
				
																$(element).addEvent('change', function(){ getStockByCombination(form); } );
				
										else if($(element).type == "radio")
				
																$(element).addEvent('click', function(){ getStockByCombination(form); } );
				
				}

			
			if(fieldType)
			{
				try
				{
					if(requiredField == 1)
						required = true;
					else
						required = false;
				}
				catch(err){ required = false }
				
				switch(fieldType)
				{
					case 'natural':
						
						element.validate = new Spry.Widget.ValidationTextField(element, "integer", { isRequired:required, validateOn:['blur'], minValue:0 } );
						break;
						
					case 'integer':
						
						element.validate = new Spry.Widget.ValidationTextField(element, "integer", { isRequired:required, validateOn:['blur'] } );
						break;
					
					case 'float':	
					
						element.validate = new Spry.Widget.ValidationTextField(element, "real", { isRequired:required,validateOn:['blur'] } );
						break;
					
					case 'email':	
					
						element.validate = new Spry.Widget.ValidationTextField(element, "email", { isRequired:required,validateOn:["blur"] });
						break;
					
					case 'time':	
					
						element.validate = new Spry.Widget.ValidationTextField(element, "time", { isRequired:required, validateOn:['blur'] , useCharacterMasking:true , format:formats.timeFormat } );
						break;
					
					case 'date':	
					
						element.validate = new Spry.Widget.ValidationTextField(element, "date", { isRequired:required, useCharacterMasking:true, format:formats.dateFormat, hint:formats.dateFormat, validateOn:["blur"]} );
						
						Calendar.setup({inputField:element, button:element});
						
						break;
						
					case 'phone':	
					
						//element.validate = new Spry.Widget.ValidationTextField(element, "phone_number", { isRequired:required, validateOn:["blur"],format:"phone_custom" , pattern:"000000000"});
						element.validate = new Spry.Widget.ValidationTextField(element, "integer", { isRequired:required, validateOn:["blur"], allowNegative:false, minValue:10000000 });
						break;
					
					case 'url':	
					
						element.validate = new Spry.Widget.ValidationTextField(element, "url", { isRequired:required, validateOn:["blur"]});
						break;
					
					case 'creditcard':
					
						element.validate = new Spry.Widget.ValidationTextField(element, "zip_code", { isRequired:required, useCharacterMasking:true, pattern:'0000-0000-0000-0000' , validateOn:['blur'] } );
						break;
					
					case 'ip':	
					
						element.validate = new Spry.Widget.ValidationTextField(element, "ip", { isRequired:required, validateOn:['blur'] } );
						break;
						
					case 'shortmemo':	
					
						element.validate = new Spry.Widget.ValidationTextarea(element, { isRequired:required, validateOn:['blur'] } );
						break;
						
					case 'checkbox':
      
						var container = element.getAttribute('fieldContainerId')
						if( container )
						 container = $(container);
						else
						 container = $(element);
						
						new Spry.Widget.ValidationCheckbox(container,{isRequired:required});
						break;
					
					case 'checkbox_group':
      
						var container = element.getAttribute('fieldContainerId')

						var minSelections = element.getAttribute('minSelections')
						if( container )
						 container = $(container);
						else
						 container = $(element);
						
						new Spry.Widget.ValidationCheckbox(container,{isRequired:required, minSelections:minSelections});
						break;
						
					case 'radio':
      
						var container = element.getAttribute('fieldContainerId')
						if( container )
						 container = $(container);
						else
						 container = $(element);
						 
 						new Spry.Widget.ValidationRadio(container,{isRequired:required, validateOn:["blur", "change"]});
						break;
					/*case 'longmemo':	
					
						element.validate = new Spry.Widget.ValidationTextarea(element, { isRequired:required, validateOn:['blur'] } );
						break;*/
						
					default:
					
						element.validate = new Spry.Widget.ValidationTextField(element, "none", { isRequired:required, validateOn:['blur'] } );
						break;
					
				}
			}
			
	}
}