function confirm_delete(obj, text) {	
	table_mode = false;
	try {
		if (!obj) {
			throw(e);
		}
		i = 0;
		element = obj;
		tagName = 'tr';
		while (element.parentNode && (!element.tagName ||
			(element.tagName.toUpperCase() != tagName.toUpperCase())))
		{
			element = element.parentNode;
			if (i++ > 2) throw e;
		}
		
		Element.addClassName(element, 'toDelete');

		table_mode = true;
	}
	catch (e) {
		table_mode = false;
	}
	conf = confirm(text + "\n\nΕίστε βέβαιος;");
	if (table_mode) {
		Element.removeClassName(element, 'toDelete');
	}
	return conf;
}