function show_submenu(id){
	document.getElementById('submenu_'+id).style.visibility='visible';
}
function hide_submenu(id){
	if(document.getElementById('submenu_'+id).className=="submenu"){
		document.getElementById('submenu_'+id).style.visibility='hidden';
	}
}
function set_unch(id){
	document.getElementById('submenu_'+id).className='submenu_cur';
}

var frm_c;
var status=1;

function sh_frm(){
	var frm_cur=document.getElementById('frm').innerHTML;
	if(frm_cur!=''){
		frm_c=frm_cur;
		document.getElementById('frm').innerHTML='';
		document.getElementById('sh_l').innerHTML='[show]';
	}else{
		document.getElementById('frm').innerHTML=frm_c;
		document.getElementById('sh_l').innerHTML='[show]';
	}
}