var win = null;
function newWindow(mypage,myname,w,h,features) {
	var winl = (screen.width-w)/2;
	var wint = (screen.height-h)/2;
	if (winl < 0) winl = 0;
	if (wint < 0) wint = 0;
	var settings = 'height=' + h + ',';
	settings += 'width=' + w + ',';
	settings += 'top=' + wint + ',';
	settings += 'left=' + winl + ',';
	settings += features;
	win = window.open(mypage,myname,settings);
	if (win == null) alert(popupmessage);
	else win.window.focus();
}

function addItemToCart(guid,qty,funktion){
	var url = '/ajax/itemToCart.asp';
	var pars = 'qty=' + qty + '&itemGuid=' + guid + '&funktion=' + funktion  ;
	// alert(pars);
	var myAjax = new Ajax.Updater(
		'smallcart', 
		url,
		{
			method: 'get', 
			parameters: pars,
			onComplete: addItemToCartComplete
		});
	
}

function itemImagePopUp(imageObj) 
{
    var largeImageSrc = imageObj.src.replace("/medium/", "/large/");
    window.open('/pages/showAnyPic.asp?picture='+largeImageSrc, '', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=0,width=540,height=420');
}

function validQuantity( qntField )
{
	var qnt = document.getElementById(qntField).value;
	if( qnt != parseInt( qnt, 10 ))
	{
		alert('brug kun tal i antal feltet');
		return false
		}
	else
		{
			if( qnt < 1 )
			{
				alert('antal skal være større end 0');
				return false
			}
		}
		
		return true;
}

function submitenter(myfield,e)
{
	var keycode;
	if (window.event) keycode = window.event.keyCode;
	else if (e) keycode = e.which;
	else return true;
	if (keycode == 13)
	{
		document.getElementById('funktion').value = "update";
		myfield.form.submit();
		return false;
	}
	else
		return true;
}