function datefilter_type_select(p_parent_code)
{

	
	switch(document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_type"].selectedIndex)
	{
		case 0:
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_day"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_month"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_year"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_day"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_month"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_year"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_hour"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_minutes"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_hour"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_minutes"].disabled=true;
		break;
		case 1:
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_day"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_month"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_year"].disabled=false;		
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_day"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_month"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_year"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_hour"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_minutes"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_hour"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_minutes"].disabled=true;
		break;
		case 2:
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_day"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_month"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_year"].disabled=false;		
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_day"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_month"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_year"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_hour"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_minutes"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_hour"].disabled=true;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_minutes"].disabled=true;
			
		break;
		case 3:
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_day"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_month"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_year"].disabled=false;		
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_day"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_month"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_year"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_hour"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_start_minutes"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_hour"].disabled=false;
			document.forms[p_parent_code+"data_filter"].elements[p_parent_code+"datefilter_end_minutes"].disabled=false;
		break;
	}
	
}