var win = null; function openFoto(img){ foto= new Image(); foto.src=(img); Controll(img); } function Controll(img){ if((foto.width!=0)&&(foto.height!=0)){ viewFoto(img); } else{ uitvoeren = "Controll('"+img+"')"; interval = setTimeout(uitvoeren,20); } } function viewFoto(img){ w=foto.width; h=foto.height; LeftPosition = (screen.width) ? (screen.width-w)/2 : 0; TopPosition = (screen.height) ? (screen.height-h)/2 : 0; settings = 'width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',status=0'; win = window.open('','',settings); win.document.write(""); win.document.write("

"); win.document.close(); win.focus(); }