function popup_vert(sUrl) {
	vert_image_win = window.open('event_popup.php?img=' + sUrl + '&frame=375', 'vert_image_win', 'width=400,height=550,scrollbars=no,resizable=no,status=no,location=no,menubar=no');
	vert_image_win.focus();
}

function popup_horz(sUrl) {
	horz_image_win = window.open('event_popup.php?img=' + sUrl + '&frame=500', 'horz_image_win', 'width=550,height=425,scrollbars=no,resizable=no,status=no,location=no,menubar=no');
	horz_image_win.focus();
}

function popup_square(sUrl) {
	square_image_win = window.open('event_popup.php?img=' + sUrl + '&frame=375', 'square_image_win', 'width=400,height=425,scrollbars=no,resizable=no,status=no,location=no,menubar=no');
	square_image_win.focus();
}