function openSps(querystr, forcedTaal, sitestatLink)
	{
		var spsurl = 'http://secure.landal.com/datapark/sps.aspx?sessionID=tqtfcaym5oyjlz454ss3qour';
		var strActiecode = '';
		var tocode = '';
		
		if(spsurl.indexOf('?') > -1 && querystr.indexOf('?') == 0)
		{
			querystr = querystr.substring(1,querystr.length);
		}

		if (forcedTaal == null)forcedTaal = "";
		if (sitestatLink == null)sitestatLink = "";
				
		if ((querystr!=null)&&(querystr!=''))
		{
		
			if ((querystr=='landaldirect') && (!false))
			{
				
					spsurl = '/landaldirekt/default.aspx?via=website';
					querystr='';
				
			}
		
			else if ((querystr=='landalactie') || (false))
			{
				spsurl = '/landaldirekt/actiecode.aspx?via=website';

				querystr='';
			}
			else if (querystr.indexOf('beschikbaarheidid=-') > -1) {
			    // early booking
				querystr = '&' + querystr;
			}
			else if (querystr.indexOf('boekditpark=') > -1) { 
                querystr = '&' + querystr;
            }
            else if (querystr.indexOf('boekditpark') > -1) { 
			    
			        tmpstr = querystr.replace('boekditpark&','');
			        querystr='';
    				
			        if(tmpstr.indexOf('boekditpark') < 0 && querystr.indexOf('boekditpark') < 0)
			            querystr = querystr + '&' + tmpstr;
			        else if(tmpstr.indexOf('boekditpark') < 0 && querystr.indexOf('boekditpark') > -1)
			            querystr = querystr + '&' + tmpstr;
				

			}
			else
				querystr = '&' + querystr;
		}
		else
			querystr = '';
		
		var existing = false;
		
		if (top.spswin != null)
		{
			try
			{
				if(!top.spswin.closed)
				{
					top.spswin.focus();
					existing = true;
				}
			}
			catch (e)	
			{
				existing = false;
			} 
		}

		if (!existing)
		{
			// indien touroperator (via een kanaal) dan deze meesturen naar SPS
			var theTaal = '&taal=nl-nl';
			if (forcedTaal != null && forcedTaal != '')
				theTaal = forcedTaal;  // inclusief '&taal='

            
				
			var tmpUrl = spsurl+tocode+theTaal+'&thema=villaselect'+querystr;


            

			//alert(tmpUrl);

			var thewin = window.open(tmpUrl,'spswindow','width=960,height=555,status=yes,location=yes,scrollbars=1,top=10,left=10');
			if(thewin != null)
			{
			    top.spswin = thewin;
			    thewin.focus();
			}
		}
	}