var isDOM=document.getElementById?1:0;
var isIE=document.all?1:0;
var isNS4=navigator.appName=='Netscape'&&!isDOM?1:0;
var isNS6Plus=navigator.appName=='Netscape'&&isDOM?1:0;
var isIE4=isIE&&!isDOM?1:0;
var isOp=window.opera?1:0;
var isDyn=isDOM||isIE||isNS4;

if (document.images)
{
	img1on = new Image();
	img1on.src = "images/buttons/btnhom_on.gif";
	img1off = new Image();
	img1off.src = "images/buttons/btnhom_off.gif";

	img2on = new Image();
	img2on.src = "images/buttons/btnfea_on.gif";
	img2off = new Image();
	img2off.src = "images/buttons/btnfea_off.gif";

	img3on = new Image();
	img3on.src = "images/buttons/btndwn_on.gif";
	img3off = new Image();
	img3off.src = "images/buttons/btndwn_off.gif";

	img4on = new Image();
	img4on.src = "images/buttons/btnbuy_on.gif";
	img4off = new Image();
	img4off.src = "images/buttons/btnbuy_off.gif";

	img5on = new Image();
	img5on.src = "images/buttons/btncnt_on.gif";
	img5off = new Image();
	img5off.src = "images/buttons/btncnt_off.gif";

	img6on = new Image();
	img6on.src = "images/buttons/btndwnnow_on.gif";
	img6off = new Image();
	img6off.src = "images/buttons/btndwnnow_off.gif";

	img7on = new Image();
	img7on.src = "images/buttons/request_on.gif";
	img7off = new Image();
	img7off.src = "images/buttons/request_off.gif";

	img8on = new Image();
	img8on.src = "images/buttons/reset_on.gif";
	img8off = new Image();
	img8off.src = "images/buttons/reset_off.gif";

	img9on = new Image();
	img9on.src = "images/buttons/submit_on.gif";
	img9off = new Image();
	img9off.src = "images/buttons/submit_off.gif";

	imgfaqon = new Image();
	imgfaqon.src = "images/buttons/faqs_on.gif";
	imgfaqoff = new Image();
	imgfaqoff.src = "images/buttons/faqs_off.gif";

	imgarticleson = new Image();
	imgarticleson.src = "images/buttons/articles_on.gif";
	imgarticlesoff = new Image();
	imgarticlesoff.src = "images/buttons/articles_off.gif";

	imgnewson = new Image();
	imgnewson.src = "images/buttons/news_on.gif";
	imgnewsoff = new Image();
	imgnewsoff.src = "images/buttons/news_off.gif";

	imghowon = new Image();
	imghowon.src = "images/buttons/how_on.gif";
	imghowoff = new Image();
	imghowoff.src = "images/buttons/how_off.gif";

	imgbkgon = new Image();
	imgbkgon.src = "images/buttons/bkg_on.gif";
	imgbkgoff = new Image();
	imgbkgoff.src = "images/buttons/bkg_off.gif";

}

function CkCheck()
{
  if (document.cookie == "") 
  {
    document.frmMain.cookieExists.value ="false"  
  } else {
    document.frmMain.cookieExists.value ="true"
  }
}

function doacc(elem)
{
	var obj=isIE==true?document.all('accdets'):document.getElementById('accdets');
	if(obj!=null)
		obj.style.display=elem.checked?'block':'none';
		enacc(!elem.checked); 
}

		function enacc(chkac)
		{
			document.getElementById("txtAccountantEmail").disabled = chkac;
			document.getElementById("txtAccountantPhoneNo").disabled = chkac;
			document.getElementById("txtAccountantBusName").disabled = chkac;
			document.getElementById("txtAccountantStreetAndNo").disabled = chkac;
			document.getElementById("txtAccountantTownCity").disabled = chkac;
			document.getElementById("txtAccountantCounty").disabled = chkac;
			document.getElementById("txtAccountantPostCode").disabled = chkac;
			document.getElementById("cboAccountantTitle").disabled = chkac;
			document.getElementById("txtAccountantForeName").disabled = chkac;
			document.getElementById("txtAccountantName").disabled = chkac;
			if (accChk==true)
				document.getElementById("chkResendAccCD").disabled = chkac;
		}


function SetCheckNextControl(evt)
{
/*
	var code = "";
	var nextCtrl = "";
	evt = (evt) ? evt : ((event) ? event : null);
	//if (evt) evt.cancelBubble = true;
	var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
	if (node != null &&  node != "undefined")
	{
		if(evt||evt.charCode)
		{
			nextCtrl = (isIE==true&&!isOp?node.attributes("nextidx").value:isNS6Plus==true?node.getAttribute("nextidx"):node.attributes["nextidx"].value);
			if (evt)
				code = evt.keyCode;
			else if(evt.charCode)
				code = evt.charCode;
			if(code==13)
			{
				var ctrl = null;
				if (isIE==true&&!isOp)
					ctrl = eval("document.all('"+nextCtrl+"')");
				else if(isNS6Plus==true)
					ctrl = eval("document.getElementById('"+nextCtrl+"')");
					if (ctrl) 
					{
						var isInput=new Boolean(ctrl.tagName=="INPUT");
						if(node.value=="") return;
						ctrl.focus();
						if(isInput==true)ctrl.select();
					}
			}
		}
	}
	*/
}

function ShowFreeGifts()
{
	  window.open("FreeGifts.aspx","Gifts","width=780px,height=550px,directories=no,location=no,menubar=no,scrollbars=no,status=no,toolbar=no,resizable=no"); 
}

function preload_GiftImages()
{
	var ims=new Array;
	for (var gNum=0;gNum<giftImgArr.length;gNum++)
	{
		ims[gNum+1]=new Image(100,100);
		ims[gNum+1].src=giftImgArr[gNum];
	}
	imgpos = document.frmGift.hdnImageIdx.value;
	if (ims.length>0 && imgpos>0){thisImgRef.src=ims[imgpos].src;}
	return ims;
}

function GetGift(nxtG)
{
	if (giftObjs.length>0)
	{
		if(nxtG==true)
		{
			if(imgpos==giftObjs.length-1)
				imgpos=1;
			else
				imgpos++;				
		}
		else
		{
			if(imgpos<=1)
				imgpos=giftObjs.length-1;
			else
				imgpos--;				
		}
		thisImgRef.src=giftObjs[imgpos].src;
		thisImgRef.alt = giftDesArr[imgpos];
		document.frmGift.hdnImageIdx.value=imgpos;
		
	}
}

function handleFormReturn(evt)
{
	evt = (evt) ? evt : ((event) ? event : null);
	if (evt) evt.cancelBubble = true;
	return false;
}


function imgOn(imgName)
{
	if (document.images) 
	{
		document[imgName].src=eval(imgName+"on.src");
		//document.forms[0][imgName].src=eval(imgName+"on.src");
	}
}

function imgOff(imgName)
{
	if (document.images)
	{
		document[imgName].src=eval(imgName+"off.src");
		//document.forms[0][imgName].src=eval(imgName+"off.src");
	}
}
function restrictInput(tbox_input,input_len) {
  if (tbox_input.value.length < input_len) {
    return true;
  }
  return false;
}