function show_select_field(id){
		if (document.getElementById(id).getAttribute('style') == 'display:block'){
			document.getElementById(id).setAttribute('style','display:none');
                        document.getElementById('select_screen').setAttribute('style','display:none');
		}else{
			document.getElementById(id).setAttribute('style','display:block');
                        document.getElementById('select_screen').setAttribute('style','display:block');
		}
	}
	function set_value(id_select, id_input, span_id, key_value,el_value, select_el){
           // alert('id_select=' + id_select + ', id_input=' + id_input + ', el_value=' + el_value + ', select_el=' + select_el);
		document.getElementById(id_input).value = key_value;
                document.getElementById(span_id).innerHTML = el_value;
		//document.getElementById(id_select).setAttribute('title',el_value);
		show_select_field(select_el);
	}