function click_group(img, div, src0, src1) {
	if (div.style.display == 'none') {
		div.style.display = 'block';
		img.src = src1;
	} else {
		div.style.display = 'none';
		img.src = src0;		
	} // end if
	return false;
} // end function

function show_contact(id, width, height) {
	if (width < 10) width = 600;
	if (height < 10) height = 480;
	var left, top;
	if (screen) {
		left = (screen.width - width) / 2;
		top = (screen.height - height) / 2;
	} else {
		left = 100;
		top = 100;
	} // end if
	win = window.open('contact.php?id=' + id, 'contact' + id, 'width=' + width + ', height=' + height + ', left=' + left + ', top=' + top + ', location=no, toolbar=no, menubar=no, status=no, scrollbars=yes');
	if (win) win.focus();
	return false;
} // end function