function Pay () {

	complete = false;

    this.display_pay=display_pay;
	this.display_pay_pal_button=display_pay_pal_button;
    this.display_pay_tab=display_pay_tab;
    this.check_details=check_details;
   
   
    function display_pay() {
    	if (pay_tab == false) {
            $('#payment-info').remove();
            $('#loading-pay-tab').remove();
            $('<div>').attr('id', 'loading-pay-tab').attr('style', 'display:none;').appendTo('#all-payment-info');
            $('#loading-pay-tab').html('<p class="loading">loading ...</p>');
            $('#loading-pay-tab').fadeIn('fast');
            var newURL= 'http://www.rocklandsboulders.com/bookings/get_pay_info';
            jQuery.ajax ({
                data: "",			
                type: "POST",
                url: newURL,
                success: function(data){
                    var data_array=data.split(';');
                    total_price=data_array[0].replace('total_price=', '');
                    unique_user_id=data_array[1].replace('unique_user_id=', '');
                    if (total_price > 0) {
                        check_details(total_price, unique_user_id);
                    }
                    else {
                        $('<div>').attr('id', 'payment-info').attr('style', 'display:none;').appendTo('#all-payment-info');
                        $('#payment-info').html('<p style="font-weight:normal;padding-bottom:10px;">you have nothing to pay for</p>');
                        display_pay_tab();
                    }
                }
          	})
        }
    }
    
    function display_pay_pal_button(total_price, unique_user_id) {
    	$('#payment-info').append('<ul class="paypal-list"><li class="paypal-list">rocklands boulders uses PayPal to facilitate safe online payment</li><li class="paypal-list">you do not need to have an account with PayPal to use their payment facilities</li><li class="paypal-list">PayPal uses Great British Pounds currency</li><li class="paypal-list">you will automatically return to this website from PayPal</li></ul><form action="https://www.paypal.com/cgi-bin/webscr" method="post"class="paypal"><input type="hidden" name="cmd" value="_xclick"><input type="hidden" name="business" value="info@rocklandsboulders.com"><input type="hidden" name="item_name" value="bouldering mat"><input type="hidden" name="item_number" value="'+unique_user_id+'"><input type="hidden" name="amount" value="'+total_price+'" id="pay_pal_price"><input type="hidden" name="page_style" value="Primary"><input type="hidden" name="custom" value="merchant_custom_value"><input type="hidden" name="charset" value=”utf-8”><input type="hidden" name="no_shipping" value="1"><input type="hidden" name="return" value="http://www.rocklandsboulders.com/bookings/payment_success"><input type="hidden" name="cancel_return" value="http://www.rocklandsboulders.com/bookings/payment_cancel"><input type="hidden" name="notify_url" value="http://www.rocklandsboulders.com/bookings/paypal_ipn"><input type="hidden" name="currency_code" value="GBP"><input type="hidden" name="lc" value="GB"><input type="hidden" name="bn" value="PP-BuyNowBF"><input type="submit" name="submit" value="pay with PayPal" /><img alt="" border="0" src="https://www.paypal.com/en_GB/i/scr/pixel.gif" width="1" height="1"></form>');
        return true;
    }
    
    function check_details(total_price, unique_user_id) {
    	var newURL= 'http://www.rocklandsboulders.com/bookings/check_user_details';
		jQuery.ajax ({
            data: "",			
            type: "POST",
            url: newURL,
            success: function(data){
            	var user_details=data.replace('user_details=', '')
                 $('<div>').attr('id', 'payment-info').attr('style', 'display:none;').appendTo('#all-payment-info');
                if (user_details == 'false') {
                    $('#payment-info').append('<p>please complete your details so that we can contact you</p>');
            	}
                if (display_pay_pal_button(total_price, unique_user_id)) {
                    display_pay_tab();
                }
            }
        });    
    }
    
    function display_pay_tab() {
    	$('#loading-pay-tab').fadeOut('fast', function() {
        	$('#loading-pay-tab').remove();
    		$('#payment-info').fadeIn('fast');
        });
    }
    
}