function updateitems() {
    cookie = ReadCookie("HLS");
    var sl = cookie.split("&");
    var out = "";    
    for(i=0;i<sl.length;i++) {
        try{
            var sls = sl[i].split("=");
            var quan = $get("quantity" + sls[0]).value
            if(quan != 0) {
                out += sls[0] + "=" + quan
                if(i != sl.length -1) out += "&";
            }
        }catch(e){}
    }
    CreateCookie("HLS", out, 7); 
    return true;
}

function removeitems(id) {
    cookie = ReadCookie("HLS");
    var sl = cookie.split("&");
    var out = "";    
    for(i=0;i<sl.length;i++) {
        try{
            var sls = sl[i].split("=");
            if(sls[0] != id) {
                var quan = $get("quantity" + sls[0]).value
                out += sls[0] + "=" + quan
                if(i != sl.length -1) out += "&";
            }
            
        }catch(e){}
    }
    
    if(out == "") EraseCookie("HLS");
    else CreateCookie("HLS", out, 7); 
    return true;
}


function CreateCookie(name,value,days)
{
	if (days) 
	{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function ReadCookie(name) 
{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++)
	 {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function EraseCookie(name) {CreateCookie(name,"",-1);}