function openwindow(pic,wid,hei){ picture = window.open("","picturewin","width="+wid+",height="+hei); var towrite = ""; towrite = ""+pic+"
"; towrite += "Klik om te sluiten"; towrite += "
"; picture.document.write(towrite); } function openclose(id){ if(document.getElementById(id).style.display=='block'){ document.getElementById(id).style.display='none'; }else{ document.getElementById(id).style.display='block'; } }