/*menu*/
var getId = function(id){ return document.getElementById(id)};
function submenu(menu_no){
	if( getId("first_"+menu_no) != null && getId("second_"+menu_no) != null ){
		getId("first_"+menu_no).className=(getId("first_"+menu_no).className =='')?'on':'';	
		getId("second_"+menu_no).style.display=(getId("second_"+menu_no).style.display =='none')?'':'none';
	}
}

var sb = 0;
var sba = 0;
function mychg(m){
    if(sba==1) {
	sbb=getId("lm"+m).style.display;
	getId("lm"+m).style.display=sbb=="none"?"block":"none";
	getId("father"+m).className=getId("father"+m).className==""?"on":"";
	}
	else {
    if(sb!=0){ 
	getId("lm"+sb).style.display="none";
	getId("father"+sb).className="";
	}
    if(sb!=m){
        getId("lm"+m).style.display="block";
		getId("father"+m).className="on";
        sb=m;
    }
    else sb=0;
	}
}
//block & hidden
function BlockOrHidden(ID){
	var str_id = ID.split( "," );

	for( var i = 0; i < str_id.length; i++ ){
		if( getId( str_id[i] ) != null ){
			var URL = getId( str_id[i] ).getElementsByTagName("script");
			var URLLength = URL[0].src.length;
			var cmsLength = getId( str_id[i] ).innerHTML.length;
			var cutLength = cmsLength - URLLength;
		
			if(cutLength != 47){
				getId( str_id[i] ).style.display = "block";
			}else{
			getId( str_id[i] ).style.display = "none";	
			}
		}
 	}
}
/*tab*/
function o_tab(){
	var tab_menu,tab_main;
	var on,off;
	var type;
	
	function getId( id ){ return document.getElementById( id );}
	
	function setListener(){
		for( var i = 0; i < tab_menu.length; i++ ){
			tab_menu[i].cur_no = i;
			if( type == "" ){
				tab_menu[i].onclick = setOnAndOff;
			} else {
				tab_menu[i].onmouseover = setOnAndOff;
				tab_menu[i].onmouseout = setOnAndOff;
			}
		}
	}
	
	function setOnAndOff(){
		for( var i=0; i<tab_menu.length; i++ ){
		   	getId(tab_main+(i+1)).style.display = ( i==this.cur_no )?"block":"none";
			tab_menu[i].className = ( i==this.cur_no )?on:off;
		}
		return false;
	}
	
	this.init = function( tab_menu1,tagName,tab_main1,on1,off1,no1,type1 ){
		tab_menu = getId(tab_menu1).getElementsByTagName( tagName );
		tab_main = tab_main1;
		on = on1;
		off = off1;
		type = type1;
		tab_menu[no1-1].className = on;
		getId(tab_main+no1).style.display = "block";
		setListener();
	}

}