function popup(){
   myWin = window.open('../images/blaak.jpg', 
	 'nieuw_venster', 
	 'width=317,height=448, scrollbars=no,toolbar=no,location=no,menubar=no,status=no,directories=no,resizable=no');
}
function od1(){
   myWin = window.open('../od/foto1_od_png.php', 
	 'nieuw_venster', 
	 'width=770,height=600, scrollbars=no,toolbar=no,location=no,menubar=no,status=no,directories=no,resizable=no');
}
function od2(){
   myWin = window.open('../od/foto2_od_png.php', 
	 'nieuw_venster', 
	 'width=875,height=700, scrollbars=no,toolbar=no,location=no,menubar=no,status=no,directories=no,resizable=no');
}
function od3(){
   myWin = window.open('../od/foto3_od_png.php', 
	 'nieuw_venster', 
	 'width=864,height=650, scrollbars=no,toolbar=no,location=no,menubar=no,status=no,directories=no,resizable=no');
}
function od4(){
   myWin = window.open('../od/foto4_od_png.php', 
	 'nieuw_venster', 
	 'width=875,height=700, scrollbars=no,toolbar=no,location=no,menubar=no,status=no,directories=no,resizable=no');
}
function od5(){
   myWin = window.open('../od/foto5_od_png.php', 
	 'nieuw_venster', 
	 'width=875,height=685, scrollbars=no,toolbar=no,location=no,menubar=no,status=no,directories=no,resizable=no');
}
function od6(){
   myWin = window.open('../od/foto6_od_png.php', 
	 'nieuw_venster', 
	 'width=875,height=685, scrollbars=no,toolbar=no,location=no,menubar=no,status=no,directories=no,resizable=no');
}