function checkPostCode (toCheck) {
  // Permitted letters depend upon their position in the postcode.
  var alpha1 = "[abcdefghijklmnoprstuwyz]";                       // Character 1
  var alpha2 = "[abcdefghklmnopqrstuvwxy]";                       // Character 2
  var alpha3 = "[abcdefghjkstuw]";                                // Character 3
  var alpha4 = "[abehmnprvwxy]";                                  // Character 4
  var alpha5 = "[abdefghjlnpqrstuwxyz]";                          // Character 5
  // Array holds the regular expressions for the valid postcodes
  var pcexp = new Array ();
  // Expression for postcodes: AN NAA, ANN NAA, AAN NAA, and AANN NAA
  pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "?[0-9]{1,2})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
  // Expression for postcodes: ANA NAA
  pcexp.push (new RegExp ("^(" + alpha1 + "{1}[0-9]{1}" + alpha3 + "{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
  // Expression for postcodes: AANA  NAA
  pcexp.push (new RegExp ("^(" + alpha1 + "{1}" + alpha2 + "?[0-9]{1}" + alpha4 +"{1})(\\s*)([0-9]{1}" + alpha5 + "{2})$","i"));
  // Exception for the special postcode GIR 0AA
  pcexp.push (/^(GIR)(\s*)(0AA)$/i);
  // Standard BFPO numbers
  pcexp.push (/^(bfpo)(\s*)([0-9]{1,4})$/i);
  // c/o BFPO numbers
  pcexp.push (/^(bfpo)(\s*)(c\/o\s*[0-9]{1,3})$/i);
  // Load up the string to check
  var postCode = toCheck;
  // Assume we're not going to find a valid postcode
  var valid = false;
  // Check the string against the types of post codes
  for ( var i=0; i<pcexp.length; i++) {
    if (pcexp[i].test(postCode)) {
      // The post code is valid - split the post code into component parts
      pcexp[i].exec(postCode);
      // Copy it back into the original string, converting it to uppercase and
      // inserting a space between the inward and outward codes
      postCode = RegExp.$1.toUpperCase() + " " + RegExp.$3.toUpperCase();
      // If it is a BFPO c/o type postcode, tidy up the "c/o" part
      postCode = postCode.replace (/C\/O\s*/,"c/o ");
      // Load new postcode back into the form element
      valid = true;
      // Remember that we have found that the code is valid and break from loop
      break;
    }
  }
  // Return with either the reformatted valid postcode or the original invalid 
  // postcode
  if (valid) {return postCode;} else 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_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_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_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 checksearch(f){
	if (f.keyword.value == "" )
	{
		alert('Please enter a search term.');
		return false;
	}else
		return true;
}

function checkform(f){
	if (f.emailshot.value == 'Enter your email address to join our mailing list.' )
	{
		alert('Please enter your email address.');
		return false;
	}else
		return true;
}

function set_row_bgcolor (id, color) {
	var row = document.getElementById (id);
	row.style.backgroundColor = color;
}

function set_cat_bgcolor (id, colour) {
	var cat = document.getElementById (id);
	cat.style.color = colour;
}

//v1.7
// Flash Player Version Detection
// Detect Client Browser type
// Copyright 2005-2007 Adobe Systems Incorporated.  All rights reserved.
var isIE  = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false;
var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false;
var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false;

function ControlVersion()
{
	var version;
	var axo;
	var e;

	// NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry

	try {
		// version will be set for 7.X or greater players
		axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
		version = axo.GetVariable("$version");
	} catch (e) {
	}

	if (!version)
	{
		try {
			// version will be set for 6.X players only
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
			
			// installed player is some revision of 6.0
			// GetVariable("$version") crashes for versions 6.0.22 through 6.0.29,
			// so we have to be careful. 
			
			// default to the first public version
			version = "WIN 6,0,21,0";

			// throws if AllowScripAccess does not exist (introduced in 6.0r47)		
			axo.AllowScriptAccess = "always";

			// safe to call for 6.0r47 or greater
			version = axo.GetVariable("$version");

		} catch (e) {
		}
	}

	if (!version)
	{
		try {
			// version will be set for 4.X or 5.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = axo.GetVariable("$version");
		} catch (e) {
		}
	}

	if (!version)
	{
		try {
			// version will be set for 3.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3");
			version = "WIN 3,0,18,0";
		} catch (e) {
		}
	}

	if (!version)
	{
		try {
			// version will be set for 2.X player
			axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
			version = "WIN 2,0,0,11";
		} catch (e) {
			version = -1;
		}
	}
	
	return version;
}

// JavaScript helper required to detect Flash Player PlugIn version information
function GetSwfVer(){
	// NS/Opera version >= 3 check for Flash plugin in plugin array
	var flashVer = -1;
	
	if (navigator.plugins != null && navigator.plugins.length > 0) {
		if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) {
			var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : "";
			var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description;
			var descArray = flashDescription.split(" ");
			var tempArrayMajor = descArray[2].split(".");			
			var versionMajor = tempArrayMajor[0];
			var versionMinor = tempArrayMajor[1];
			var versionRevision = descArray[3];
			if (versionRevision == "") {
				versionRevision = descArray[4];
			}
			if (versionRevision[0] == "d") {
				versionRevision = versionRevision.substring(1);
			} else if (versionRevision[0] == "r") {
				versionRevision = versionRevision.substring(1);
				if (versionRevision.indexOf("d") > 0) {
					versionRevision = versionRevision.substring(0, versionRevision.indexOf("d"));
				}
			}
			var flashVer = versionMajor + "." + versionMinor + "." + versionRevision;
		}
	}
	// MSN/WebTV 2.6 supports Flash 4
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4;
	// WebTV 2.5 supports Flash 3
	else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3;
	// older WebTV supports Flash 2
	else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2;
	else if ( isIE && isWin && !isOpera ) {
		flashVer = ControlVersion();
	}	
	return flashVer;
}

// When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available
function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision)
{
	versionStr = GetSwfVer();
	if (versionStr == -1 ) {
		return false;
	} else if (versionStr != 0) {
		if(isIE && isWin && !isOpera) {
			// Given "WIN 2,0,0,11"
			tempArray         = versionStr.split(" "); 	// ["WIN", "2,0,0,11"]
			tempString        = tempArray[1];			// "2,0,0,11"
			versionArray      = tempString.split(",");	// ['2', '0', '0', '11']
		} else {
			versionArray      = versionStr.split(".");
		}
		var versionMajor      = versionArray[0];
		var versionMinor      = versionArray[1];
		var versionRevision   = versionArray[2];

        	// is the major.revision >= requested major.revision AND the minor version >= requested minor
		if (versionMajor > parseFloat(reqMajorVer)) {
			return true;
		} else if (versionMajor == parseFloat(reqMajorVer)) {
			if (versionMinor > parseFloat(reqMinorVer))
				return true;
			else if (versionMinor == parseFloat(reqMinorVer)) {
				if (versionRevision >= parseFloat(reqRevision))
					return true;
			}
		}
		return false;
	}
}

function AC_AddExtension(src, ext)
{
  if (src.indexOf('?') != -1)
    return src.replace(/\?/, ext+'?'); 
  else
    return src + ext;
}

function AC_Generateobj(objAttrs, params, embedAttrs) 
{ 
  var str = '';
  if (isIE && isWin && !isOpera)
  {
    str += '<object ';
    for (var i in objAttrs)
    {
      str += i + '="' + objAttrs[i] + '" ';
    }
    str += '>';
    for (var i in params)
    {
      str += '<param name="' + i + '" value="' + params[i] + '" /> ';
    }
    str += '</object>';
  }
  else
  {
    str += '<embed ';
    for (var i in embedAttrs)
    {
      str += i + '="' + embedAttrs[i] + '" ';
    }
    str += '> </embed>';
  }

  document.write(str);
}

function AC_FL_RunContent(){
  var ret = 
    AC_GetArgs
    (  arguments, ".swf", "movie", "clsid:d27cdb6e-ae6d-11cf-96b8-444553540000"
     , "application/x-shockwave-flash"
    );
  AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
}

function AC_SW_RunContent(){
  var ret = 
    AC_GetArgs
    (  arguments, ".dcr", "src", "clsid:166B1BCA-3F9C-11CF-8075-444553540000"
     , null
    );
  AC_Generateobj(ret.objAttrs, ret.params, ret.embedAttrs);
}

function AC_GetArgs(args, ext, srcParamName, classid, mimeType){
  var ret = new Object();
  ret.embedAttrs = new Object();
  ret.params = new Object();
  ret.objAttrs = new Object();
  for (var i=0; i < args.length; i=i+2){
    var currArg = args[i].toLowerCase();    

    switch (currArg){	
      case "classid":
        break;
      case "pluginspage":
        ret.embedAttrs[args[i]] = args[i+1];
        break;
      case "src":
      case "movie":	
        args[i+1] = AC_AddExtension(args[i+1], ext);
        ret.embedAttrs["src"] = args[i+1];
        ret.params[srcParamName] = args[i+1];
        break;
      case "onafterupdate":
      case "onbeforeupdate":
      case "onblur":
      case "oncellchange":
      case "onclick":
      case "ondblclick":
      case "ondrag":
      case "ondragend":
      case "ondragenter":
      case "ondragleave":
      case "ondragover":
      case "ondrop":
      case "onfinish":
      case "onfocus":
      case "onhelp":
      case "onmousedown":
      case "onmouseup":
      case "onmouseover":
      case "onmousemove":
      case "onmouseout":
      case "onkeypress":
      case "onkeydown":
      case "onkeyup":
      case "onload":
      case "onlosecapture":
      case "onpropertychange":
      case "onreadystatechange":
      case "onrowsdelete":
      case "onrowenter":
      case "onrowexit":
      case "onrowsinserted":
      case "onstart":
      case "onscroll":
      case "onbeforeeditfocus":
      case "onactivate":
      case "onbeforedeactivate":
      case "ondeactivate":
      case "type":
      case "codebase":
      case "id":
        ret.objAttrs[args[i]] = args[i+1];
        break;
      case "width":
      case "height":
      case "align":
      case "vspace": 
      case "hspace":
      case "class":
      case "title":
      case "accesskey":
      case "name":
      case "tabindex":
        ret.embedAttrs[args[i]] = ret.objAttrs[args[i]] = args[i+1];
        break;
      default:
        ret.embedAttrs[args[i]] = ret.params[args[i]] = args[i+1];
    }
  }
  ret.objAttrs["classid"] = classid;
  if (mimeType) ret.embedAttrs["type"] = mimeType;
  return ret;
}

//Function to change the product image
function messageWindow(title, largeimg)
{
  var width="400", height="460";
  var left = (screen.width/2) - width/2;
  var top = (screen.height/2) - height/2;
  var styleStr = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbar=no,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
  var msgWindow
  msgWindow.close()
  msgWindow = window.open("","msgWindow", styleStr);
  var head = '<head><title>'+title+'</title></head>';
  var body = '<center><img src="'+largeimg+'" alt="" width="400" /><br><p><form><input type="button" value="   Done   " onClick="self.close()"></form>';
  msgWindow.document.write(head + body);
}

function changeimage(newimg){
	var mainimg = document.getElementById('largeimg')
	var img = newimg
	mainimg.src="attachments/fullsize/" + img
	//messageWindow('Product Image', '<img src="attachments/fullsize/'+img+'" alt="" height="400" width="400" />')
}

function getImgSize(id){
var pic = document.getElementById(id);
var h = pic.offsetHeight;
var w = pic.offsetWidth;
alert ('The image size is '+w+'*'+h);
} 

function poplargewindow(){
	var img = document.getElementById('largeimg')
	var largeimg = img.src
	var width="400", height="460";
	var left = (screen.width/2) - width/2;
	var top = (screen.height/2) - height/2;
	var styleStr = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
	var msgWindow = window.open("","msgWindow", styleStr);
	var head = '<head><title>Product Image</title></head>';
	var body = '<center><img id="popimg" src="'+largeimg+'" alt="" /><br><p><form><input type="button" value="   Done   " onClick="self.close()"></form>';
	msgWindow.document.write(head + body);
	getImgSize('popimg');
}

function popwindow(url){
	var width="500", height="280";
	var left = (screen.width/2) - width/2;
	var top = (screen.height/2) - height/2;
	var styleStr = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,scrollbar=yes,resizable=no,copyhistory=no,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
	var msgWindow = window.open(url,"PopWindow", styleStr);
}

function popsmallwindow(url){
	var width="410", height="150";
	var left = (screen.width/2) - width/2;
	var top = (screen.height/2) - height/2;
	var styleStr = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,scrollbar=yes,resizable=no,copyhistory=no,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
	var msgWindow = window.open(url,"PopWindow", styleStr);
}

function pophelpwindow(id){
	var width="280", height="315";
	var url = "helpwindow.asp?helpid=" + id
	var left = (screen.width/2) - width/2;
	var top = (screen.height/2) - height/2;
	var styleStr1 = 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=no,width='+width+',height='+height+',left='+left+',top='+top+',screenX='+left+',screenY='+top;
	var msgWindow = window.open(url,"PopWindow", styleStr1);
}

//function strip_spaces(mystr) {
//  var newstring = "";
//  if (mystr.indexOf(' ') != -1) {
//    string = mystr.split(' ');
//    for (var i=0;)
//      newstring += string[i];
//    }
//    return newstring;
//  } else { return mystr; }
//}

//function validcc(ccNumb) {  // v2.0
//var valid = "0123456789"  // Valid digits in a credit card number
//var len = ccNumb.length;  // The length of the submitted cc number
//var iCCN = parseInt(ccNumb);  // integer of ccNumb
//var sCCN = ccNumb.toString();  // string of ccNumb
//sCCN = sCCN.replace (/^\s+|\s+$/g,'');  // strip spaces
//sCCN = strip_spaces(sCCN)
//var iTotal = 0;  // integer total set at zero
//var bNum = true;  // by default assume it is a number
//var bResult = false;  // by default assume it is NOT a valid cc
//var temp;  // temp variable for parsing string
//var calc;  // used for calculation of each digit

// Determine if the ccNumb is in fact all numbers
//for (var j=0; j<len; j++) {
//  temp = "" + sCCN.substring(j, j+1);
//  if (valid.indexOf(temp) == "-1"){bNum = false;}
//}

// if it is NOT a number, you can either alert to the fact, or just pass a failure
//if(!bNum){
  /*alert("Not a Number");*///bResult = false;
//}

// Determine if it is the proper length 
//if((len == 0)&&(bResult)){  // nothing, field is blank AND passed above # check
//  bResult = false;
//} else{  // ccNumb is a number and the proper length - let's see if it is a valid card number
//  if(len >= 15){  // 15 or 16 for Amex or V/MC
//    for(var i=len;i>0;i--){  // LOOP throught the digits of the card
//      calc = parseInt(iCCN) % 10;  // right most digit
//      calc = parseInt(calc);  // assure it is an integer
//      iTotal += calc;  // running total of the card number as we loop - Do Nothing to first digit
//      i--;  // decrement the count - move to the next digit in the card
//      iCCN = iCCN / 10;                               // subtracts right most digit from ccNumb
//      calc = parseInt(iCCN) % 10 ;    // NEXT right most digit
//      calc = calc *2;                                 // multiply the digit by two
      // Instead of some screwy method of converting 16 to a string and then parsing 1 and 6 and then adding them to make 7,
      // I use a simple switch statement to change the value of calc2 to 7 if 16 is the multiple.
//      switch(calc){
//        case 10: calc = 1; break;       //5*2=10 & 1+0 = 1
//        case 12: calc = 3; break;       //6*2=12 & 1+2 = 3
//        case 14: calc = 5; break;       //7*2=14 & 1+4 = 5
//        case 16: calc = 7; break;       //8*2=16 & 1+6 = 7
//        case 18: calc = 9; break;       //9*2=18 & 1+8 = 9
//        default: calc = calc;           //4*2= 8 &   8 = 8  -same for all lower numbers
//      }                                               
//    iCCN = iCCN / 10;  // subtracts right most digit from ccNum
//    iTotal += calc;  // running total of the card number as we loop
//  }  // END OF LOOP
//  if ((iTotal%10)==0){  // check to see if the sum Mod 10 is zero
//    bResult = true;  // This IS (or could be) a valid credit card number.
//  } else {
//    bResult = false;  // This could NOT be a valid credit card number
//    }
//  }
//}
// change alert to on-page display or other indication as needed.
//  return bResult; // Return the results
//}