function isDisplayed(elementId) {
	var elm = getElement(elementId);
	if(elm.style.display == "")
		return true;
	else
		return false;
}

function toggleDisplay(elementId) {
	var elm = getElement(elementId);
	if(elm.style.display == "")
		elm.style.display = "none";
	else
		elm.style.display = "";
}

function getElement(elementId) {
	if(document.getElementById(elementId))
		return document.getElementById(elementId);
	if(document.all(elementId))
		return document.all(elementId);
}

function loadPage(src) {
	window.parent.fraContent.document.location = src;
}




objClicked = null; oldImg = null	
	

var isMac = (navigator.appVersion.indexOf("Mac")!=-1) ? true : false;
var W3C = document.getElementById? true : false;
var NN4 = document.layers? true : false;
var IE4 = document.all? true : false;
var MOZ5 = ((navigator.userAgent.toLowerCase().indexOf("mozilla")==0) && (navigator.userAgent.toLowerCase().charAt(8) >= 5) && (navigator.userAgent.toLowerCase().indexOf("compatible")<0));
var OP = navigator.userAgent.toLowerCase().indexOf("opera")>=0;
var left;
var top;
var X;
var Y;
	
/*function stopError()
{
	return true;
};
window.onerror = stopError;*/

function clearOldObj(){
	for(i=0;i<=9;i++)
	{eval("oldThis"+i+"=null")}
}

function openPopupFullscreen(address){
	if (navigator.appName == "Netscape"){
		mywindow = window.open(address, 'activitytown', 'location=no,status=no,toolbar=no,scrollbar=no,width='+screen.width+',height='+screen.height);
		mywindow.focus();
		mywindow.moveTo(50,50);
	}else{
		oWin = window.open(address, "activitytown", "height="+ (window.screen.availHeight-26) +",width="+ (window.screen.availWidth-10) +",location=no,scrollbars=no,menubar=no,status=no,toolbar=no,top=0,left=0");
		oWin.focus();
	}
}


function openPopup(oUrl,oHeight,oWidth,useScroll){
	window.open(oUrl,"","height="+ oHeight +",width="+ oWidth +",location=0,scrollbars="+ useScroll +",menubar=0,status=0,toolbar=0")
}

function WinOpen(theUrl, theParameters){
	msg=open(theUrl,"DisplayWindow", theParameters);
	msg.document.close();
}

function isThisIE5OrLater(){
	if ((navigator.appVersion.indexOf("MSIE 5")>0 || navigator.appVersion.indexOf("MSIE 6")>0) && navigator.appVersion.indexOf("Mac")<0)
		return true;
}

function getHeight(id){
	if(W3C)return parseInt(document.getElementById(id).offsetHeight);
	else return parseInt(document.all[id].clientHeight);
}

function moveLay(lay,pTop,pLeft){
	if (W3C){
		if (navigator.userAgent.toLowerCase().indexOf('opera')>-1)
		{
			document.getElementById(lay).style.top = pTop;
			document.getElementById(lay).style.left = pLeft;
		}else{
			document.getElementById(lay).style.top = pTop + "px";
			document.getElementById(lay).style.left = pLeft + "px";
		}
	}else if (IE4){
		document.all[lay].style.pixelTop = pTop;
		document.all[lay].style.pixelLeft = pLeft;
	}else if(NN4){
		document.layers[lay].top = pTop;
		document.layers[lay].left = pLeft;
	}
}

function visLay(lay,vis) {
	if (W3C) {
		document.getElementById(lay).style.visibility = vis;
	}else if (IE4){
		document.all[lay].style.visibility = vis;
	}else if(NN4){
		document.layers[lay].visibility = vis;
	}
}

function isVisible(lay,vis){
	if (W3C){
		if (document.getElementById(lay).style.visibility==vis)
			return true
	}else if (IE4){
		if (document.all[lay].style.visibility==vis)
			return true
	}else if(NN4){
		if (document.layers[lay].visibility==vis)
			return true
	}
	return false
}

function getMousePos(e){
	if (IE4 || OP){
		X = document.body.scrollLeft + event.clientX;
		Y = document.body.scrollTop + event.clientY;
	}else{
		X = e.pageX;
		Y = e.pageY;
	}
}
	
function preloadImages(){
  var d=document; if(d.images){ if(!d.p) d.p=new Array();
    var i,j=d.p.length,a=preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.p[j]=new Image; d.p[j++].src=a[i];}}
}

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

function swapClickedImgRestore(){
  var i,x,a=oldImg; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function findObj(n, d){
  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=findObj(n,d.layers[i].document); return x;
}

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

function openBrWindow(theURL,winName,features){
  window.open(theURL,winName,features);
}
	
function emailCheck(emailStr) {
	var emailPat=/^(.+)@(.+)$/
	var specialChars="\\(\\)<>@,;:\\\\\\\"\\.\\[\\]"
	var validChars="\[^\\s" + specialChars + "\]"
	var quotedUser="(\"[^\"]*\")"
	var ipDomainPat=/^\[(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})\]$/
	var atom=validChars + '+'
	var word="(" + atom + "|" + quotedUser + ")"
	var userPat=new RegExp("^" + word + "(\\." + word + ")*$")
	var domainPat=new RegExp("^" + atom + "(\\." + atom +")*$")

	var matchArray=emailStr.match(emailPat)
	if (matchArray==null){
		alert("Ogiltig e-postadress.")
		return false
	}
	var user=matchArray[1]
	var domain=matchArray[2]

	if (user.match(userPat)==null){
	    alert("Ogiltig e-postadress.")
	    return false
	}

	var IPArray=domain.match(ipDomainPat)
	if (IPArray!=null){
		for (var i=1;i<=4;i++) {
		    if (IPArray[i]>255){
		        alert("Ogiltig e-postadress.")
				return false
		    }
		}
	    return true
	}

	var domainArray=domain.match(domainPat)
	if (domainArray==null){
		alert("Ogiltig e-postadress.")
	    return false
	}

	var atomPat=new RegExp(atom,"g")
	var domArr=domain.match(atomPat)
	var len=domArr.length
	if (domArr[domArr.length-1].length<2 || domArr[domArr.length-1].length>3){
	   alert("Ogiltig e-postadress.")
	   return false
	}

	if (len<2){
	   var errStr="This address is missing a hostname!"
	   alert(errStr)
	   return false
	}
	return true;
}

var load				= false;
var imgSrcArray			= new Array();
var imgNameArray		= new Array();
var imgHoverOutArray	= new Array();
var imgHoverOverArray	= new Array();
			
function showOver(pic){ 
	if (load)
		document.images[pic].src = imgHoverOverArray[pic].src;
}
			
function showOut(pic){ 
	if (load)
		document.images[pic].src = imgHoverOutArray[pic].src;
}

function preLoad(){ 
	if (document.images){
		x=0;
		for (i=0; i<document.images.length; i++){
				if(document.images[i].name!=""){
					imgSrcLength = document.images[i].src.length
					for(z=imgSrcLength;z>0;z--){
						if(document.images[i].src.substring(z-1,z)=="/"){
							imgNameArray[x] = document.images[i].name;
							imgSrcArray[x] = document.images[i].src.substring(z,imgSrcLength-4);
							break;
						}
					}
				}
				x++;
		}
		for (i = 0; i < imgNameArray.length; i++){
				imgHoverOutArray[imgNameArray[i]] = new Image();
				imgHoverOutArray[imgNameArray[i]].src = 'http://www.stadium.se/img/hover/' + imgSrcArray[i] + '.gif';
				imgHoverOverArray[imgNameArray[i]] = new Image();
				imgHoverOverArray[imgNameArray[i]].src = 'http://www.stadium.se/img/hover/' + imgSrcArray[i] + 'A.gif';
		}
		load = true;
	}
}

function verifyQuantity(frmObj){
	if(isNaN(frmObj.quantity.value)){
		alert("Felaktig kvantitet!");
	}else{
		frmObj.submit();
	}
}

function verifyAddressInfo() {
	var f = document.frmAddressInfo;
	var elm = null;
	var val = "";
	var msg = "";
	
	elm = f.name;
	val = elm.value;
	msg = "Inget namn är angivet.";
	if(!verifyLength(elm, val, msg)) return false;
	
	elm = f.address1;
	val = elm.value;
	msg = "Ingen adress är angiven.";
	if(!verifyLength(elm, val, msg)) return false;
	
	elm = f.zip;
	val = elm.value.replace(/\D/gi, "");
	if(val.length < 5) val = "";
	msg = "Inget postnummer är angivet.";
	if(!verifyLength(elm, val, msg)) return false;
	
	elm = f.city;
	val = elm.value;
	msg = "Ingen postadress är angiven.";
	if(!verifyLength(elm, val, msg)) return false;
	
	elm = f.email;
	val = elm.value;
	msg = "";
	if(!emailCheck(val)) {
		verifyLength(elm, val, msg);
		return false;
	}
	
	//all seems to be ok
	f.submit();
}

function verifyLength(elm, val, msg) {
	if(val.length == 0) {
		elm.focus();
		elm.select();
		if(msg.length > 0)alert(msg);
		return false;
	}
	return true;
}