function getElement(e,f){
    if(document.layers){
        f=(f)?f:self;
        if(f.document.layers[e]) {
            return f.document.layers[e];
        }
        for(W=0;i<f.document.layers.length;W++) {
            return(getElement(e,fdocument.layers[W]));
        }
    }
    if(document.all) {
        return document.all[e];
    }
    return document.getElementById(e);
}



function isNumberKey(evt)
{
 var charCode = (evt.which) ? evt.which : event.keyCode
 if (charCode > 31 && (charCode < 48 || charCode > 57))
	return false;

 return true;
}

function highlightUpdate() {
	getElement('updateButton').style.background='#f00';
	getElement('delivery').style.display='none';
	getElement('delivery2').style.display='block';
}

function set_price2() { 
	size_id = getElement('size_id').value;
	getElement('price_disp').innerHTML = getElement('_size_prices_' + size_id).value;	
	getElement('code_disp').innerHTML= getElement('_size_codes_' + size_id).value;	
	return false;
}

function signup_form_check()
{
	this_form = document.signup_form;
	
	if(this_form.main_password.value == "")
	{
		alert("Please enter the passwod you have been given");
		this_form.main_password.focus();
		return false;
	}
	
	if(this_form.user_name_1.value == "")
	{
		alert("Please enter your first name");
		this_form.user_name_1.focus();
		return false;
	}
	
	if(this_form.user_name_2.value == "")
	{
		alert("Please enter your last name");
		this_form.user_name_2.focus();
		return false;
	}
	
	if(this_form.user_company_name.value == "")
	{
		alert("Please enter your company name");
		this_form.user_company_name.focus();
		return false;
	}
	
	if(this_form.user_address_1.value == "")
	{
		alert("Please enter your address");
		this_form.user_address_1.focus();
		return false;
	}

	if(this_form.user_town.value == "")
	{
		alert("Please enter your town");
		this_form.user_town.focus();
		return false;
	}
	
	if(this_form.user_location.value == "")
	{
		alert("Please enter your county");
		this_form.user_location.focus();
		return false;
	}
	
	if(this_form.user_postcode.value == "")
	{
		alert("Please enter your postcode");
		this_form.user_postcode.focus();
		return false;
	}
	
	if(this_form.user_country_id.value == "")
	{
		alert("Please select your country from the list");
		this_form.user_country_id.focus();
		return false;
	}
	
	if(this_form.user_email.value == "")
	{
		alert("Please enter username / email address");
		this_form.user_email.focus();
		return false;
	}
	
	if(this_form.user_telephone.value == "")
	{
		alert("Please enter your telephone number");
		this_form.user_telephone.focus();
		return false;
	}
	
	if(this_form.user_pass.value == "")
	{
		alert("Please choose a password");
		this_form.user_pass.focus();
		return false;
	}
	
	if(this_form.user_pass_conf.value == "")
	{
		alert("Please confirm your password");
		this_form.user_pass_conf.focus();
		return false;
	}
	
	if(this_form.user_pass.value != this_form.user_pass_conf.value)
	{
		alert("Passwords do not match");
		this_form.user_pass_conf.focus();
		return false;
	}
}


function shopping_cart_budget_exceeded()
{
	alert('Budget Exceeded');
}

function shopping_cart_check_details()
{
	this_form = document.order_form;
	
	submit_flag = true;
	
	disp_del_region_id = this_form.del_region_id.value;
	
	if(submit_flag == true && this_form.del_country_id.value == '')
	{
		alert("Please select a country from the list");
		this_form.del_country_id.focus();
		submit_flag = false;
	}
	
	if(submit_flag == true)
	{	
		if(this_form.del_telephone.value == "")
		{		
			alert("Please enter your telephone number");
			this_form.del_telephone.focus();
			submit_flag = false;
		}
	}

	if(submit_flag == true && this_form._use_carriage == "yes")
	{	
	
		if (delivery_form.delivery_region.value == 0)
		{
			alert("Please select a delivery option");
			delivery_form.delivery_region.focus();
			submit_flag = false;
		}
	}

	if(submit_flag == true)
	{
		if(this_form.cost_centre_code.value == "" && this_form.payment_method.value != "cc")
		{
			alert("Please enter your Purchase Order Number.");
			this_form.cost_centre_code.focus();
			submit_flag = false;
		}
	}
	
	if(submit_flag == true)
	{
		if(this_form.payment_method.value == "")
		{
			alert("Please indicate your preferred payment method.");
			this_form.payment_method.focus();
			submit_flag = false;
		}
	}

	if(submit_flag == true)
	{
	
		if (this_form._use_carriage == "yes")
		{
			this_form.delivery_total.value = this_form._delivery_charge;
			this_form.delivery_region.value = this_form._delivery_region;
		}
		this_form.submit();
		
	}	
}


function confirm_clear()
{
	var myform = document.order_form;
	if (confirm("Do you wish to clear delivery details?"))
	{

		myform.del_name.value = "";
		myform.del_address_1.value = "";
		myform.del_address_2.value = "";
		myform.del_address_3.value = "";
		myform.del_postcode.value = "";
	}

}


function update_delivery() { if(document.delivery_form.delivery_region.value != "") { document.delivery_form.submit();}}

function submit_form(action)
{
	if(action != "calculate")
	{
		this_form = document.cart_form;
		// do we have a quantity ? 
		submit_flag = false;
		total_qty = 0;
		 for(i=0; i<this_form.elements.length; i++)
		{

		this_element = this_form.elements[i].name;

			if(this_element.indexOf('size_') == 0)
			{
				this_value = this_form.elements[i].value;
				if (this_value > 0)
				{
					submit_flag = true;
					total_qty = total_qty + parseInt(this_value);
				}
			}
	   	}
		if(submit_flag == false)
		{
			alert("Please indicate required quantities.");
		}
		else
		{
			document.cart_form.submit();
		}
	}
	else
	{
		document.cart_form.action="productdetail.asp";
		document.cart_form.submit();
	}
}

function IsNumeric(sText)
{
   var ValidChars = "0123456789.";
   var IsNumber=true;
   var Char;

   for (i = 0; i < sText.length && IsNumber == true; i++) 
   { 
      Char = sText.charAt(i); 
      if (ValidChars.indexOf(Char) == -1) 
         {
         IsNumber = false;
         }
   }
   return IsNumber;
}

function form_check_cart()
{
	if(document.cart_form.order_qty.value == "")
	{
		alert("Please enter a quantity.");
		document.cart_form.order_qty.focus();
		return false;
	}
	
	if(!IsNumeric(document.cart_form.order_qty.value))
	{
		alert("Please enter a valid quantity.");
		document.cart_form.order_qty.focus();
		return false;
	}
	if(document.cart_form.size_id.value == "" || document.cart_form.size_id.value == 0)
	{
		alert("Please select a size.");
		document.cart_form.size_id.focus();
		return false;
	}
	if(document.cart_form.logo.value == "" || document.cart_form.logo.value == 0)
	{
		alert("Please select a logo");
		document.cart_form.logo.focus();
		return false;
	}
}
function form_check()
{
	this_form = document.account_form;
	
	if(this_form.user_name_1.value == "")
	{
		alert("Please enter your first name.");
		this_form.user_name_1.focus();
		return false;
	}
	if(this_form.user_name_2.value == "")
	{
		alert("Please enter your last name.");
		this_form.user_name_2.focus();
		return false;
	}
	if(this_form.user_company_name.value == "")
	{
		alert("Please enter your company name.");
		this_form.user_company_name.focus();
		return false;
	}
	if(this_form.user_address_1.value == "")
	{
		alert("Please enter the first line of your address.");
		this_form.user_address_1.focus();
		return false;
	}
	
	if(this_form.user_town.value == "")
	{
		alert("Please enter your town.");
		this_form.user_town.focus();
		return false;
	}
	if(this_form.user_postcode.value == "")
	{
		alert("Please enter your post code.");
		this_form.user_postcode.focus();
		return false;
	}
	if(this_form.user_email.value == "")
	{
		alert("Please enter your email address.");
		this_form.user_email.focus();
		return false;
	}
	
	if(this_form.user_password_new.value != "")
	{
		if(this_form.user_password_new.value != this_form.user_password_new_conf.value)
		{
			alert("Entered passwords do not match.");
			this_form.user_password_new_conf.focus();
			return false;
		}
	}
}

function login_check()
{

	this_form = document.login_form;

	if(this_form.this_username.value == ""){
		alert("Please enter your username");
		this_form.this_username.focus();
		return false;
	}
	if(this_form.this_password.value == ""){
		alert("Please enter your password");
		this_form.this_password.focus();
		return false;
	}
}


function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function print_cart() {
//get values of text fields and post to shoppingcart_print.asp
s_url = 'shoppingcart_print.asp?'
s_url += 'del_name=' + order_form.del_name.value + '&del_company_name=' + order_form.del_company_name.value
s_url += '&del_address_1=' + order_form.del_address_1.value
s_url += '&del_address_2=' + order_form.del_address_2.value
s_url += '&del_address_3=' + order_form.del_address_3.value
s_url += '&del_postcode=' + order_form.del_postcode.value
s_url += '&del_telephone=' + order_form.del_telephone.value
s_url += '&po_no=' + order_form.cost_centre_code.value + '&order_notes=' + order_form.order_notes.value;
s_url = encodeURI(s_url)
//alert(s_url);
//w_lookup = 
	window.open(s_url,"w_tttlu","toolbar=0,menubar=0,location=0,status=0,height=640,width=730") ;

//	w_lookup.w_tttnew = parent;  /* allow window to refer to this window */
//	w_lookup.asset_id = 12345;   /* int value  */
//	w_lookup.tnt_code = "NTRS";  /* char value */
	
//	w_lookup.del_details.cost_centre_code.value = "12345";
}