var oPopup;

function openPopup( sUrl )
{
	oPopup = window.open( sUrl, "popup", "toolbar=no,location=0,directories=0,status=no,menubar=no,scrollbars=yes,resizable=yes,width=600,height=532");
	
	if ( typeof oPopup == "object" )
		oPopup.focus();
}

function openVoorwaarden()
{
	openPopup( '/popup/algemene-voorwaarden.php' );
}