function checks_selectall(ctrl) {
	if (ctrl.length == 1)
		ctrl.checked = true;
	else {
		for (var i=0 ; i < ctrl.length ; i++)
			ctrl[i].checked = true;
	}
	
	return false;
}

function checks_selectnone(ctrl) {
	if (ctrl.length == 1)
		ctrl.checked = false;
	else {
		for (var i=0 ; i < ctrl.length ; i++)
			ctrl[i].checked = false;
	}
	
	return false;
}

function open_imageman(ctrl) {
	window.open('http://www.mthothamaccommodation.com.au/admin/imageman/index.cfm','','width=530,height=350');
}