var obj_m_tmp;
function menu(){
	this.m_menus=new Array();
	this.m_winL=null;
	this.m_docL=null;
	this.m_curMenu=null;
	this.m_x=null;
	this.m_y=null;
	
	this.m_images=new Array();
	
	this.m_init=m_init;
	this.m_setData=m_setData;
	this.m_hide=m_hide;
	this.m_setHide=m_setHide;
	this.m_show=m_show;
	this.m_getItem=m_getItem;
	this.m_selMenu=m_selMenu;
	
	this.obj = 'obj_m_tmp';
	eval(this.obj+'=this'); 
	return this;
}

function m_selMenu(bn_name,state){
	if (!load_flag) return;
	if(state) document.images[bn_name].src=this.m_images[bn_name+'_menu'].src;
	else document.images[bn_name].src=this.m_images[bn_name].src;
}

function m_getItem(img_name,state){
	if (!load_flag) return;
	var imgesL;
	if(ie4) imgesL=this.m_menus[this.m_curMenu]['menuL'].document;
	else imgesL=this.m_menus[this.m_curMenu]['menuL'].document.layers['layer_'+this.m_curMenu].document;
}

function mouseMove(e) {
	if(nn4){
		obj_menu.m_x=e.pageX; 
		obj_menu.m_y=e.pageY;
	}
	else{
		obj_menu.m_x=obj_menu.m_winL.event.x; 
		obj_menu.m_y=obj_menu.m_winL.event.y;
	}
}
function m_setHide(menu_name){
	if (!load_flag) return;
	if(nn4){
		if (this.m_y<this.m_menus[menu_name]['menuL'].top) this.m_hide(menu_name);
	}
	else{
		if (this.m_y<this.m_menus[menu_name]['menuL'].style.posTop) this.m_hide(menu_name);
	}	
}
function m_hide(menu_name){
	if (!load_flag) return;
	if(nn4) this.m_menus[menu_name]['menuL'].visibility='hide';
	else if(ie4) this.m_menus[menu_name]['menuL'].style.visibility='hidden';
	this.m_selMenu('bn_'+menu_name,0);
}
function m_show(menu_name){
	if (!load_flag) return;
	if (menu_name!=this.m_curMenu){
		if(this.m_curMenu) this.m_hide(this.m_curMenu);
	}
	if (this.m_menus[menu_name]['menuL']){
		if(nn4) this.m_menus[menu_name]['menuL'].visibility='show';
		else if(ie4) this.m_menus[menu_name]['menuL'].style.visibility='visible';
		this.m_curMenu=menu_name;
		this.m_selMenu('bn_'+this.m_curMenu,1);
	}
}

function m_setData(a_obj,dir){
	for(var i=0; i<a_obj.length; ++i){
		this.m_menus[a_obj[i]]=new Array();
		this.m_menus[a_obj[i]]['menuL']=null;
	}	
	
	for(var x in this.m_menus){
		this.m_images['bn_'+x]=new Image();
		this.m_images['bn_'+x].src='/image/bn_'+x+'.gif';
		this.m_images['bn_'+x+'_menu']=new Image();
		this.m_images['bn_'+x+'_menu'].src='/image/'+dir+'/bn_'+x+'_menu.gif';
	}

	
}

function m_init(winL){
	this.m_winL=winL;
	this.m_docL=this.m_winL.document;
	for(var x in this.m_menus){
		this.m_menus[x]['menuL']=(nn4 ? this.m_docL[x] : this.m_docL.all[x]);
	}	
	if(nn4){
	    this.m_docL.onmousemove = mouseMove;
		this.m_docL.captureEvents(Event.MOUSEMOVE);
	}
	else this.m_docL.onmousemove = mouseMove;
}