// JavaScript Document
			var totalsum = 0;
			var totaldisplaysum = 0;
			var optional = "";
			try {
			var http = new XMLHttpRequest(); // non-IE
			}
			
			catch (error){
			try {
			var http = new ActiveXObject("Microsoft.XMLHTTP"); // IE
			}
			catch (error) {
			}
			}		
			function loadData(){
			var url = 'data_drinker.php?id=';
			var IDValue = document.getElementById("postcode").value;
			var numberValue = parseInt(document.getElementById("layingbox").value);
			numberValue = numberValue + parseInt(document.getElementById("drinkerfeeder").value);
				http.open("GET", url + escape(IDValue) + "&number=" + escape(numberValue), true);
				http.onreadystatechange = handleHttpResponse;
				http.send(null);

			
			function handleHttpResponse() {
				if (http.readyState == 4) {
					var results = http.responseText.split('|');
					var url = 'data_drinker.php?id=';
					var IDValue = document.getElementById("postcode").value;
					var numberValue = parseInt(document.getElementById("layingbox").innerHTML);
					numberValue = numberValue + parseInt(document.getElementById("drinkerfeeder").innerHTML);
					document.paypalform.postcode.value = IDValue;
					pageTracker._trackPageview(url + escape(IDValue) + "&number=" + escape(numberValue));
					if (results[0] == 1000){
					document.getElementById("postcode_result").innerHTML = "<span style='color:#ff0000;'>Please enter a valid postcode to calculate <br />delivery</span>";
					}
					else {
						if (isNaN(parseInt(results[0]))){
					document.getElementById("postcode_result").innerHTML = "<span style='color:#ff0000;'>Please enter a valid postcode to calculate<br /> delivery</span>";
					document.getElementById("displayTotal").innerHTML = parseInt(document.paypalform.amount.value);				
					}
					else {					document.paypalform.shipping.value = parseInt(results[0]);
					document.getElementById("displayTotal").innerHTML = parseInt(document.paypalform.amount.value) + parseInt(results[0]);
					document.getElementById("postcode_result").innerHTML = results[0];
					document.pickup.cooppickup.checked = false;
					}
					}
				}
			}
		}
		
		function uncheck(){
			document.pickup.cooppickup.checked = false;
			document.paypalform.layinBoxValue.value = 0;
			document.myform.LayingBoxes.value = 0;
			document.paypalform.drinkerFeederValue.value = 0;
			document.myform.DrinkerFeeder.value = 0;
			document.form1.postcode.value = '';
			document.paypalform.amount.value = 0;
			document.paypalform.colorbond.value = 'no';
			document.paypalform.colorbondColours.value = 'no';
			document.paypalform.fox.value = 'no';
			document.paypalform.winter.value = 'no';
			document.paypalform.wheels.value = 'no';
			document.paypalform.insurance.value = 'no';
			document.paypalform.shipping.value = 1000;
			document.getElementById("displayTotal").innerHTML = 0;
		}

				
		function formchecker9(){
		totalsum = parseInt(document.paypalform.amount.value);
		totaldisplaysum = parseInt(document.getElementById("displayTotal").innerHTML);
		if(document.myform.feeder.checked == true)
  		{feeder = 70;
		text = "Drinker & Feeder";
		optional = optional + " " + text;
		document.paypalform.os1.value = optional;
		document.paypalform.feeder.value = "Drinker & Feeder";
 		}
		document.paypalform.amount.value = totalsum +  feeder;
		document.getElementById("displayTotal").innerHTML = totaldisplaysum + feeder;
		document.myform.feederColours.value = "None";
		}
		
		function formchecker10(){
		totalsum = parseInt(document.paypalform.amount.value);
		if (document.myform.DrinkerFeeder.value == false){
		document.myform.feeder.checked = true;
		feeder = 70;
		text = "Drinker & Feeder";
		optional = optional + " " + text;
		document.paypalform.os1.value = optional;
		document.paypalform.amount.value = totalsum + feeder;
		document.paypalform.feeder.value = "Drinker & Feeder";
		document.getElementById("displayTotal").innerHTML = parseInt(document.getElementById("displayTotal").innerHTML) + feeder;
		}
		text = document.myform.feederColours.value;
		optional = document.paypalform.os1.value;
		optional = optional.replace("Drinker & Feeder", "Drinker & Feeder - " + text);
		document.paypalform.os1.value = optional;
		document.paypalform.feederColours.value = text;
		}
		
  		function formchecker6(){
		if(document.pickup.cooppickup.checked == true)
  		{document.paypalform.shipping.value = 0;
		document.getElementById("postcode_result").innerHTML = 0;
		document.getElementById("displayTotal").innerHTML = totaldisplaysum - document.paypalform.shipping.value;
 		}
		if(document.pickup.cooppickup.checked == false)
  		{document.paypalform.shipping.value = 1000;
		document.getElementById("postcode_result").innerHTML = "<span style='color:#ff0000;'>Please enter your postcode to calculate delivery</span>";}
		document.getElementById("displayTotal").innerHTML = document.paypalform.amount.value;
		}
		
		function shippingcheck(){
		if(document.paypalform.shipping.value == 1000){
		alert("Please enter your postcode to calculate delivery");
		return false;
		}
		if(document.paypalform.drinkerFeederValue.value == 0 && document.paypalform.layinBoxValue.value == 0){
		alert("Please select either a Drinker & Feeder or Laying Box");
		return false;
		}
		}