var xmlHttpUrgentShipping;
var xmlProductFilter;
var xmlDeliveryAddress;

function GetXmlHttpObject(){
    var xmlHttp=null;
    try{
      // Firefox, Opera 8.0+, Safari
      xmlHttp=new XMLHttpRequest();
    }
    catch (e){
  // Internet Explorer
        try{
          xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
        }
        catch (e){
            xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
        }
    }
    return xmlHttp;
}


var productId="";
var productUrgentShippingStatus="";
var cartTableRow="";
function updateUrgentShipping(cartId, cartRow, status, prodId,cartRowNumber){
    xmlHttpUrgentShipping=GetXmlHttpObject();
    if (xmlHttpUrgentShipping==null){
        alert ("Your browser does not support AJAX!");
        return;
    }

    productId=prodId;
    cartTableRow=cartRowNumber;
    if(status == true){productUrgentShippingStatus='added';}
    else{productUrgentShippingStatus='removed';}
    var url="http://www.aattradewinds.com/index.cgi";
    url=url+"?updateUrgentShipping=on&cid="+cartId+"&cartRow="+cartRow+"&urgentShippingStatus="+status;
    xmlHttpUrgentShipping.onreadystatechange=stateChangedUrgentShipping;
    xmlHttpUrgentShipping.open("GET",url,true);
    xmlHttpUrgentShipping.send(null);
}

function stateChangedUrgentShipping(){
    if (xmlHttpUrgentShipping.readyState==4){
	if(xmlHttpUrgentShipping.responseText != ""){
	    document.getElementById('updateCartStatus').innerHTML=xmlHttpUrgentShipping.responseText+" "+productUrgentShippingStatus+" for product: "+productId+", Displayed on Row: "+cartTableRow;
	}
    }
    return true;
}

function highLight(item){
    var footNoteDiv=document.getElementById('cartFootNotes');

    for(var i=0; i < footNoteDiv.childNodes.length; i++){
	if(footNoteDiv.childNodes[i].nodeName == 'P'){
	    document.getElementById(footNoteDiv.childNodes[i].id).style.color='#000';
	}
	if(footNoteDiv.childNodes[i].id == item){
	    document.getElementById(footNoteDiv.childNodes[i].id).style.color='#f00';
	}
    }

    return false;
}

var filterByChoice="";
function displayByFilterMenu(productId,filterType,selectMenu,dept){
    filterByChoice=filterType;
    xmlProductFilter=GetXmlHttpObject();
    var filterCriteria=selectMenu.options[selectMenu.options.selectedIndex].value;
    var url="http://www.aattradewinds.com/index.cgi";
    url=url+"?productFilter="+filterType+"&prt="+productId+"&filterCriteria="+filterCriteria+"&dept="+dept;
    //alert(url);
    xmlProductFilter.onreadystatechange=displayProductsByFilterMenu;
    xmlProductFilter.open("GET",url,true);
    xmlProductFilter.send(null);

}

function displayProductsByFilterMenu(){
    if (xmlProductFilter.readyState==4){
	if(xmlProductFilter.responseText != "" || xmlProductFilter.responseText != false){
	    document.getElementById('productTableContainer').innerHTML=xmlProductFilter.responseText;
	}
	else{
	    alert("Unable to update products with your 'Filter by "+filterByChoice+"' choice");
	}
    }
    return false;
}


function selectedDeliveryAddress(node){

    //node.checked="true";
    var nodeValue=node.value;
    var cartId=document.getElementById('cart_id').value;
    var sid=document.getElementById('sid').value;

    xmlDeliveryAddress=GetXmlHttpObject();
    if (xmlDeliveryAddress==null){
        alert ("Your browser does not support AJAX!");
        return;
    }
    var url="https://secure.webage.co.uk/www.aattradewinds.com/index.cgi";
    url=url+"?provideDeliveryAddressForm=on&cid="+cartId+"&sid="+sid+"&selectedAddress="+nodeValue;
    xmlDeliveryAddress.onreadystatechange=stateChangedselectedDeliveryAddress;
    xmlDeliveryAddress.open("GET",url,true);
    xmlDeliveryAddress.send(null);

}

function stateChangedselectedDeliveryAddress(){
    if (xmlDeliveryAddress.readyState==4){
	if(xmlDeliveryAddress.responseText != "" || xmlDeliveryAddress.responseText != false){
	    document.getElementById('deliveryAddress').innerHTML=xmlDeliveryAddress.responseText;
	   document.getElementById('delivery_restrictions_order_form_button').disabled=false;
	}
    }
    else{
	  document.getElementById('delivery_restrictions_order_form_button').disabled=true;
    }
    return false;

}

function checkNewAddressFieldsInserted(){

	var status=true;
	if(document.getElementById('new_name').value.length <= 0){status=false;}
	if(document.getElementById('new_number').value.length <= 0){status=false;}
	if(document.getElementById('new_street').value.length <= 0){status=false;}
	if(document.getElementById('new_town').value.length <= 0){status=false;}
	if(document.getElementById('new_region').value.length <= 0){status=false;}
	if(document.getElementById('new_zip').value.length <= 0){status=false;}

	if(status==true){
	    document.getElementById('delivery_restrictions_order_form_button').disabled=false;

	    }
	else{document.getElementById('delivery_restrictions_order_form_button').disabled=true;

	    return false;
	 }
}

function setRequiredError(node){
    node.style.backgroundColor='#FECD04';
    node.style.borderColor='#f00';
}

function unSetRequiredError(node){
    node.style.backgroundColor='#fff';
    node.style.borderColor='#CCCCCC';
}

function validateRegistrationForm(form){

    var hasErrors=0;
    var errorMessages='<ul>';

    var title=form.title.value;
    if(!/[A-Za-z]/.test(title)){
       errorMessages+=("<li><b>Error: </b>Title is required</li>");
        setRequiredError(form.title);
        hasErrors=1;
    } else{
        unSetRequiredError(form.title);
    }

    var firstname=form.firstname.value;
    if(!/[A-Za-z]/.test(firstname)){
        errorMessages+=("<li><b>Error: </b>First name is required</li>");
        setRequiredError(form.firstname);
        hasErrors=1;
    } else{
        unSetRequiredError(form.firstname);
    }

    var surname=form.surname.value;
    if(!/[A-Za-z]/.test(surname)){
         errorMessages+=("<li><b>Error: </b>Surname is required</li>");
       setRequiredError(form.surname);
        hasErrors=1;
    } else{
        unSetRequiredError(form.surname);
    }

     var house=form.house.value;
    if(!/[A-Za-z0-9]/.test(house)){
         errorMessages+=("<li><b>Error: </b>House Number / Name is required</li>");
       setRequiredError(form.house);
        hasErrors=1;
    } else{
        unSetRequiredError(form.house);
    }

    var street=form.street.value;
    if(!/[A-Za-z]/.test(street)){
         errorMessages+=("<li><b>Error: </b>Street is required</li>");
       setRequiredError(form.street);
        hasErrors=1;
    } else{
        unSetRequiredError(form.street);
    }

    var town=form.town.value;
    if(!/[A-Za-z]/.test(town)){
         errorMessages+=("<li><b>Error: </b>Town is required</li>");
       setRequiredError(form.town);
        hasErrors=1;
    } else{
        unSetRequiredError(form.town);
    }

     var county=form.county.value;
    if(!/[A-Za-z]/.test(county)){
         errorMessages+=("<li><b>Error: </b>County is required</li>");
       setRequiredError(form.county);
        hasErrors=1;
    } else{
        unSetRequiredError(form.county);
    }

     var postcode=form.postcode.value;
    if(!/[A-Za-z]/.test(postcode)){
         errorMessages+=("<li><b>Error: </b>Postcode is required</li>");
       setRequiredError(form.postcode);
        hasErrors=1;
    } else{
        unSetRequiredError(form.postcode);
    }

    var country=form.country.value;
    if(!/[A-Za-z]/.test(country)){
        errorMessages+=("<li><b>Error: </b>Country is required</li>");
        setRequiredError(form.country);
        hasErrors=1;
    } else{
        unSetRequiredError(form.country);
    }

     var telephone=form.telephone.value;
    if(!/[A-Za-z0-9]/.test(telephone)){
         errorMessages+=("<li><b>Error: </b>Telephone is required</li>");
       setRequiredError(form.telephone);
        hasErrors=1;
    } else{
        unSetRequiredError(form.telephone);
    }


    var email=form.email.value;
    if(!/^\w(\.?[\w-])*@\w(\.?[\w-])*\.[a-z]{2,6}(\.[a-z]{2})?$/i.test(email)){
        errorMessages+=("<li><b>Error: </b>Email address format is wrong</li>");
      setRequiredError(form.email);
        hasErrors=1;
    } else{
        unSetRequiredError(form.email);
    }

    var reemail=form.reemail.value;
    if(reemail != email){
         errorMessages+=("<li><b>Error: </b>The email addresses entered do no match</li>");
        setRequiredError(form.reemail);
        hasErrors=1;
    } else{
        unSetRequiredError(form.reemail);
    }

    var username=form.username.value;
    if(!/[A-Za-z0-9]/.test(username)){
        errorMessages+=("<li><b>Error: </b>Username is required</li>");
        setRequiredError(form.username);
        hasErrors=1;
    } else{
        unSetRequiredError(form.username);
    }


     var password=form.password.value;
    if(!/[A-Za-z0-9]/.test(password)){
        errorMessages+=("<li><b>Error: </b>Password is required</li>");
        setRequiredError(form.password);
        hasErrors=1;
    } else{
        unSetRequiredError(form.password);
    }

    errorMessages+='</ul>';
    if(hasErrors==1){
        document.getElementById('regError').innerHTML=errorMessages;
        return false;
    } else{
        document.getElementById('regError').innerHTML='';
        return true;
    }
}

function validateLoginForm(form){
     var username=form.username.value;
    if(!/[A-Za-z0-9]/.test(username)){
        alert("Error: Username is required");
        form.username.focus();
        return false;
    }

     var password=form.password.value;
    if(!/[A-Za-z0-9]/.test(password)){
        alert("Error: Password is required");
        form.password.focus();
        return false;
    }

}


function validateDeliveryAddressForm(form){
     var isNewAddress=document.getElementById('newAddressOption').checked;
    if(isNewAddress == true){
	var hasErrors=0;
	var errorMessages='<ul>';

	var new_name=document.getElementById('new_name').value;
	if(!/[A-Za-z]/.test(new_name)){
	    errorMessages+=("<li><b>Error: </b>Name is required</li>");
	    setRequiredError(document.getElementById('new_name'));
	    hasErrors=1;
	} else{
	    unSetRequiredError(document.getElementById('new_name'));
	}

	var new_number=document.getElementById('new_number').value;
	if(!/[A-Za-z0-9]/.test(new_number)){
	    errorMessages+=("<li><b>Error: </b>House Number / Name is required</li>");
	    setRequiredError(document.getElementById('new_number'));
	    hasErrors=1;
	} else{
	    unSetRequiredError(document.getElementById('new_number'));
	}

	var new_street=document.getElementById('new_street').value;
	if(!/[A-Za-z]/.test(new_street)){
	    errorMessages+=("<li><b>Error: </b>Street is required</li>");
	    setRequiredError(document.getElementById('new_street'));
	    hasErrors=1;
	} else{
	    unSetRequiredError(document.getElementById('new_street'));
	}

	var new_town=document.getElementById('new_town').value;
	if(!/[A-Za-z]/.test(new_town)){
	    errorMessages+=("<li><b>Error: </b>Town is required</li>");
	    setRequiredError(document.getElementById('new_town'));
	    hasErrors=1;
	} else{
	    unSetRequiredError(document.getElementById('new_town'));
	}

	var new_region=document.getElementById('new_region').value;
	if(!/[A-Za-z]/.test(new_region)){
	    errorMessages+=("<li><b>Error: </b>County / City is required</li>");
	    setRequiredError(document.getElementById('new_region'));
	    hasErrors=1;
	} else{
	    unSetRequiredError(document.getElementById('new_region'));
	}

	var new_zip=document.getElementById('new_zip').value;
	if(!/[A-Za-z]/.test(new_zip)){
	    errorMessages+=("<li><b>Error: </b>Postcode is required</li>");
	    setRequiredError(document.getElementById('new_zip'));
	    hasErrors=1;
	} else{
	    unSetRequiredError(document.getElementById('new_zip'));
	}

	var new_country=document.getElementById('new_country').value;
	if(!/[A-Za-z]/.test(new_country)){
	    errorMessages+=("<li><b>Error: </b>Country is required</li>");
	    setRequiredError(document.getElementById('new_country'));
	    hasErrors=1;
	} else{
	    unSetRequiredError(document.getElementById('new_country'));
	}

	if(hasErrors==1){
	    document.getElementById('newAddressErrors').innerHTML=errorMessages;
	    return false;
	}
	else{
	    document.getElementById('newAddressErrors').innerHTML='';
	    return true;
	}
    }
    else{
	document.getElementById('newAddressErrors').innerHTML='';
	return true;
    }
}