function plattegrond(){
window.open('plattegrond.html','plattegrond','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=495,height=500');
}

function menu(){
window.open('menu.html','menu','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,width=440,height=300');
}

function msg2me(){
window.open('msg2me.php','msg2me','toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=no,resizable=no,width=300,height=370');
}

function syas(){
	window.open('syas/default.htm','Shortcut','alwaysRaised=yes,resizable=no,scrollbars=no,width=350,height=350,left=100,top=100,screenX=100,screenY=100');
}