ns4 = (document.layers)? true:false;

function start(sp){
	if(sp == undefined) var sp = '';
	else sp = "_"+sp;
	
                xPos = (screen.availWidth/2-400);
                yPos = (screen.availHeight/2-265);

           if (ns4){
                    almemo26908 = window.open('http://www.ahlborn.de/almemo26908/almemo26908'+sp+'.htm','almemo26908','width=800,height=530,resizable=no,scrollbars=no,location=no,directories=no,status=no,menubar=no,toolbar=no');
                    }

           else	{
    	        almemo26908 = window.open('http://www.ahlborn.de/almemo26908/almemo26908'+sp+'.htm','almemo26908','width=800,height=530,resizable=no,scrollbars=no,location=no,directories=no,status=no,menubar=no,toolbar=no');    
                } 
                                   	
                setTimeout('almemo26908.moveTo(xPos,yPos);',100);
                setTimeout('almemo26908.focus();',100);
        }