function explain(key,key2)
{
	var _topmenu = 6;

	/*top images over  */       
	/*var _topImg = document.getElementsByName("Image"+_topmenu)[0].src ;
	var _topimsipath       = _topImg.split("/");  // split 함수사용..     
	var _topimgName        = _topimsipath[_topimsipath.length-1];   // 잘라진 값 배열..
	var _topimsiimgName    = _topimgName.split(".");  // split 함수사용..     
	var _topimsiimgName2    = _topimsiimgName[0].split("_");  // split 함수사용..    
	var _topoverImg        = _topimsiimgName2[0]+"_"+ _topimsiimgName2[1]+"_over."+ _topimsiimgName[1]; 

	document.getElementsByName("Image"+_topmenu)[0].src = "/english/images/res/"+_topoverImg +"";
*/
	/*top layer down */
	/*TopSubMenuChange(_topmenu); */

	/*leftmenu images over */
	for(i = 0; document.getElementsByName("leftmenu1").length > i ; i++) 
	{
		document.getElementsByName("leftmenu1")[i].style.display = "none";
		document.getElementsByName("leftmenu1_")[i].style.display = "block";
	}

	document.getElementsByName("leftmenu1")[key-1].style.display = "block";
	document.getElementsByName("leftmenu1_")[key-1].style.display = "none";

    	if (key2 !=0 && key2 !=null)
	{
		    document.getElementsByName("leftsubmenu"+key+key2)[0].className="menu_3_over";
	}   
}	
<!-- Last Generated Date :: [2010-02-26 15:17:06 066] -->