function openWindow(YachtID,ReiseNr,BookID)
{
	var para_count=0;
	var para='';
	var Seite="http://www.trade-wind.de/tw/web/d/bildergalerie.php";

	if (YachtID)
	{
		if(para_count==0){para+='?';}else{para+='&';}
		para+="YachtID="+YachtID;
		para_count+=1;
	} 
	
	if (ReiseNr)
	{
		if(para_count==0){para+='?';}else{para+='&';}
		para+="ReiseNr="+ReiseNr;
		para_count+=1;
	} 
	if (BookID)
	{
		if(para_count==0){para+='?';}else{para+='&';}
		para+="BookID="+BookID;
		para_count+=1;
	} 
	
	if (para_count>1){Seite+=para;}
	//alert(Seite);
	
	
	TheNewWin =window.open(Seite,'Bildergalerie','fullscreen=no, location=no, directories=no, status=no, menubar=no,scrollbars=yes,resizable=yes,titlebar=no, toolbar=no, top=50, left=200, height=640, width=600');

}