function $RF(el, radioGroup) {
    if($(el).type && $(el).type.toLowerCase() == 'radio') {
        var radioGroup = $(el).name;
        var el = $(el).form;
    } else if ($(el).tagName.toLowerCase() != 'form') {
        return false;
    }

    var checked = $(el).getInputs('radio', radioGroup).find(
        function(re) {return re.checked;}
    );
    return (checked) ? $F(checked) : null;
}



function get_totals_element()
{
	// Search for OSC summary element
	var search_osc = $$('div.onestepcheckout-summary');
	
	if(search_osc.length > 0)	{
		return search_osc[0];
	}
	
	var search_cart = $$('div.shopping-cart-totals');
	
	if(search_cart.length > 0)	{
		return search_cart[0];
	}
	
	if($('shopping-cart-totals-table'))	{
		return $('shopping-cart-totals-table');
	}
	
}

function get_save_methods_function(url, update_payments)
{

	if(typeof update_payments == 'undefined')	{
		var update_payments = false;
	}

	return function(e)	{
	
        if(typeof e != 'undefined')    {
            var element = e.element();
            
            if(element.name != 'shipping_method')    {
                update_payments = false;
            }            
        }		
		
		var form = $('onestepcheckout-form');
		var shipping_method = $RF(form, 'shipping_method');
		var payment_method = $RF(form, 'payment[method]');
				
		var totals = get_totals_element();
		totals.update('<div class="loading-ajax">&nbsp;</div>');
		
		if(update_payments)	{
			var payment_methods = $$('div.payment-methods')[0];
			payment_methods.update('<div class="loading-ajax">&nbsp;</div>');
		}
	
		var parameters = {
			shipping_method: shipping_method,
			payment_method: payment_method
		}
	
		/* Find payment parameters and include */
		var items = $$('input[name^=payment]', 'select[name^=payment]');
		var names = items.pluck('name');
		var values = items.pluck('value');
		
		for(var x=0; x < names.length; x++)	{
			if(names[x] != 'payment[method]')	{
				parameters[names[x]] = values[x];	
			}
		}
		
		

		new Ajax.Request(url, {
			method: 'post',
			onSuccess: function(transport)	{
				if(transport.status == 200)	{
					var data = transport.responseText.evalJSON();
					
					totals.update(data.summary);
					
					if(update_payments)	{
					
						payment_methods.update(data.payment_method);
						
						$$('div.payment-methods input[name^=payment\[method\]]').invoke('observe', 'click', get_separate_save_methods_function(url));		
					
						$$('div.payment-methods input[name^=payment\[method\]]').invoke('observe', 'click', function() {
							$$('div.onestepcheckout-payment-method-error').each(function(item) {
								new Effect.Fade(item);
							});												
						});						

						if($RF(form, 'payment[method]') != null)	{
							try	{
								var payment_method = $RF(form, 'payment[method]');
								$('container_payment_method_' + payment_method).show();
								$('payment_form_' + payment_method).show();
							} catch(err)	{
					
							}
						}
							
					}
				}
			},
			parameters: parameters
		});
	}
}	


function exclude_unchecked_checkboxes(data)
{
	var items = [];
	for(var x=0; x < data.length; x++)	{
		var item = data[x];
		if(item.type == 'checkbox')	{
			if(item.checked)	{
				items.push(item);
			}
		}
		else	{
			items.push(item);
		}
	}
	
	return items;
}

function get_save_billing_function(url, set_methods_url, update_payments)
{
	if(typeof update_payments == 'undefined')	{
		var update_payments = false;
	}

	return function()	{
		var form = $('onestepcheckout-form');
		var items = exclude_unchecked_checkboxes($$('input[name^=billing]', 'select[name^=billing]'));
		var names = items.pluck('name');
		var values = items.pluck('value');
		var parameters = {
            shipping_method: $RF(form, 'shipping_method')
        };
		

		var street_count = 0;
		for(var x=0; x < names.length; x++)	{
			if(names[x] != 'payment[method]')	{
				
				var current_name = names[x];
				
				if(names[x] == 'billing[street][]')	{
					current_name = 'billing[street][' + street_count + ']';
					street_count = street_count + 1;
				}
			
				parameters[current_name] = values[x];	
			}
		}
		
		var use_for_shipping = $('billing:use_for_shipping_yes');
		
		
		
		
		if(use_for_shipping && use_for_shipping.getValue() != '1')	{
			var items = $$('input[name^=shipping]', 'select[name^=shipping]');			
			var shipping_names = items.pluck('name');
			var shipping_values = items.pluck('value');
			var shipping_parameters = {};
			var street_count = 0;
			
			for(var x=0; x < shipping_names.length; x++)	{
				if(shipping_names[x] != 'shipping_method')	{
					var current_name = shipping_names[x];
					if(shipping_names[x] == 'shipping[street][]')	{
						current_name = 'shipping[street][' + street_count + ']';
						street_count = street_count + 1;
					}
					
					parameters[current_name] = shipping_values[x];	
				}
			}
		}
		
		
		var shipment_methods = $$('div.onestepcheckout-shipping-method-block')[0];
        var shipment_methods_found = false;
        
        if(typeof shipment_methods != 'undefined') {
            shipment_methods_found = true;
        }
        
        if(shipment_methods_found)  {
		    shipment_methods.update('<div class="loading-ajax">&nbsp;</div>');
        }
        

        
		
		var payment_methods = $$('div.payment-methods')[0];
		payment_methods.update('<div class="loading-ajax">&nbsp;</div>');
		
		var totals = get_totals_element();
		totals.update('<div class="loading-ajax">&nbsp;</div>');
		
	
		new Ajax.Request(url, {
			method: 'post',
			onSuccess: function(transport)	{
				if(transport.status == 200)	{	

					var data = transport.responseText.evalJSON();
					
					// Update shipment methods
                    if(shipment_methods_found)  {
					    shipment_methods.update(data.shipping_method);
                    }
					payment_methods.update(data.payment_method);
					totals.update(data.summary);
					
					// Add new event handlers
					
                    if(shipment_methods_found)  {
					    $$('dl.shipment-methods input').invoke('observe', 'click', get_separate_save_methods_function(set_methods_url, update_payments));
                    }
					
					$$('div.payment-methods input[name^=payment\[method\]]').invoke('observe', 'click', get_separate_save_methods_function(set_methods_url));		
					
					$$('div.payment-methods input[name^=payment\[method\]]').invoke('observe', 'click', function() {
						$$('div.onestepcheckout-payment-method-error').each(function(item) {
							new Effect.Fade(item);
						});
					});
					
                    if(shipment_methods_found)  {
					    $$('dl.shipment-methods input').invoke('observe', 'click', function() {
						    $$('div.onestepcheckout-shipment-method-error').each(function(item) {
							    new Effect.Fade(item);
						    });
					    });
					}
					
					if($RF(form, 'payment[method]') != null)	{
						try	{
							var payment_method = $RF(form, 'payment[method]');
							$('container_payment_method_' + payment_method).show();
							$('payment_form_' + payment_method).show();
						} catch(err)	{
				
						}
					}
					//@Omar we reset these when switching countries
					$('p_method_docdata_visa').checked = false;
					$('p_method_docdata_mastercard').checked = false;
					$('p_method_docdata_acceptgiro').checked = false;
					
				}
			},
			parameters: parameters
		});

		
	}
}

function get_separate_save_methods_function(url, update_payments)
{
	if(typeof update_payments == 'undefined')	{
		var update_payments = false;
	}

	return function(e)	{
	
        if(typeof e != 'undefined')    {
            var element = e.element();
            
            if(element.name != 'shipping_method')    {
                update_payments = false;
            }            
        }
        
		
		var form = $('onestepcheckout-form');
		var shipping_method = $RF(form, 'shipping_method');
		var payment_method = $RF(form, 'payment[method]');
				
		var totals = get_totals_element();
		totals.update('<div class="loading-ajax">&nbsp;</div>');
		
		if(update_payments)	{
			var payment_methods = $$('div.payment-methods')[0];
			payment_methods.update('<div class="loading-ajax">&nbsp;</div>');
		}
	
		var parameters = {
			shipping_method: shipping_method,
			payment_method: payment_method
		}
	
		/* Find payment parameters and include */
		var items = $$('input[name^=payment]', 'select[name^=payment]');
		var names = items.pluck('name');
		var values = items.pluck('value');
		
		for(var x=0; x < names.length; x++)	{
			if(names[x] != 'payment[method]')	{
				parameters[names[x]] = values[x];	
			}
		}
		
		

		new Ajax.Request(url, {
			method: 'post',
			onSuccess: function(transport)	{
				if(transport.status == 200)	{
					var data = transport.responseText.evalJSON();
					var form = $('onestepcheckout-form');

					totals.update(data.summary);

					if(update_payments)	{
					
						payment_methods.update(data.payment_method);
												
						$$('div.payment-methods input[name^=payment\[method\]]').invoke('observe', 'click', get_separate_save_methods_function(url));							
						$$('div.payment-methods input[name^=payment\[method\]]').invoke('observe', 'click', function() {
							$$('div.onestepcheckout-payment-method-error').each(function(item) {
								new Effect.Fade(item);
							});
						});						

						if($RF($('onestepcheckout-form'), 'payment[method]') != null)	{
							try	{
								var payment_method = $RF(form, 'payment[method]');
								$('container_payment_method_' + payment_method).show();
								$('payment_form_' + payment_method).show();
							} catch(err)	{
					
							}
						}
					}
				}
			},
			parameters: parameters
		});
	}
}	





/* Terms and conditions Popup Javascript */

function OneStepCheckout_Popup(popup_id, link_id, close_link_search)
{
	this.popup_id = popup_id;
	this.popup = $(popup_id);
	this.link_id = link_id;
	this.link = $(link_id);
    this.close_link_search = close_link_search;
	
	var onestepcheckout_popup = this;
	
	if(this.link != null)	{
		this.link.observe('click', function(e)	{

			e.preventDefault();
			onestepcheckout_popup.show();
		});
	}
	
	var close_link = $$(this.close_link_search);
	if(close_link.length > 0)	{
		close_link[0].observe('click', function(e)	{
			e.preventDefault();
			onestepcheckout_popup.hide();
		});
	}
    
    this.overlay = $('onestepcheckout_popup_overlay');
    
    this.overlay.observe('click', function(e)   {
         onestepcheckout_popup.hide();
    });
    
}

OneStepCheckout_Popup.prototype.show_overlay = function()
{
    this.overlay.show();
    
    var dimensions = document.viewport.getDimensions();
	var offset = document.viewport.getScrollOffsets();
		
	var dimensions_new = {
        height: (dimensions.height + offset.top) + 'px',
		width: (dimensions.width) + 'px'
    }
		
    this.overlay.setStyle(dimensions_new);
		
	/* IE Hack */
	var IE6 = Prototype.Browser.IE && parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf('MSIE')+5)) == 6;
		
	if(IE6)	{
		$$('select').invoke('hide');
	}
		
}

OneStepCheckout_Popup.prototype.show = function()
{
   
    this.show_overlay();
	this.popup.show();
	this.center();
}

OneStepCheckout_Popup.prototype.hide = function()
{
    this.overlay.hide();
	
	/* IE Hack */
	var IE6 = Prototype.Browser.IE && parseInt(navigator.userAgent.substring(navigator.userAgent.indexOf('MSIE')+5)) == 6;
		
	if(IE6)	{
		$$('select').invoke('show');
	}
	
	this.popup.hide();
}

OneStepCheckout_Popup.prototype.center = function()
{
	var dimensions = document.viewport.getDimensions();
	var popup_width = this.popup.getWidth();
	var popup_height = this.popup.getHeight();
	var offset = document.viewport.getScrollOffsets();
	
	var width = dimensions.width;
	var left = (width / 2) - (popup_width / 2);
	
	var height = dimensions.height;
	var top = (height / 2) - (popup_height / 2) + offset.top;
	
	this.popup.setStyle({
		top: top + 'px',
		left: left + 'px'
	});
}