function $() {
  var elements = new Array();

  for (var i = 0; i < arguments.length; i++) {
    var element = arguments[i];
    if (typeof element == 'string')
      element = document.getElementById(element);

    if (arguments.length == 1)
      return element;

    elements.push(element);
  }

  return elements;
}

function menu(obj)
{
  for(var i=0;i<=9;i++)
  {  
		$('bar_menu_'+i).style.display="none";
  		if(i==0)
  			var class_name = "top_main-nav-tit1 mr1 ml15 top_ba14";
  		if(i>8)
  			var class_name = "top_main-nav-tit3 mr1 top_ba14";
  		if(i>0 && i<9) var class_name = "top_main-nav-tit22 mr1";
  		$('menu_'+i).className=class_name;          
  }
  if(obj>8) obj=0;
	 $('bar_menu_'+obj).style.display="";

  		if(obj==0)
  			var class_name = "top_main-nav-tit1 mr1 ml15 top_ba14";
  		if(obj>8)
  			var class_name = "top_main-nav-tit3 mr1 top_ba14";
  		if(obj>0 && obj<9) var class_name = "top_main-nav-tit22 mr1 on";
   $('menu_'+obj).className=class_name;
	 
 }