// JavaScript Document
if(document.images){
 var topbtn = new Array();
  topbtn[0] = new Image(); topbtn[0].src = "images/top_home_btn.gif";
  topbtn[1] = new Image(); topbtn[1].src = "images/top_home_obtn.gif";
  topbtn[2] = new Image(); topbtn[2].src = "images/top_corporate_btn.gif";
  topbtn[3] = new Image(); topbtn[3].src = "images/top_corporate_obtn.gif";
  topbtn[4] = new Image(); topbtn[4].src = "images/top_recruit_btn.gif";
  topbtn[5] = new Image(); topbtn[5].src = "images/top_recruit_obtn.gif";
  topbtn[6] = new Image(); topbtn[6].src = "images/top_call_btn.gif";
  topbtn[7] = new Image(); topbtn[7].src = "images/top_call_obtn.gif";
  topbtn[8] = new Image(); topbtn[8].src = "images/top_sitemap_btn.gif";
  topbtn[9] = new Image(); topbtn[9].src = "images/top_sitemap_obtn.gif";
  topbtn[10] = new Image(); topbtn[10].src = "images/bar_archive_btn.gif";
  topbtn[11] = new Image(); topbtn[11].src = "images/bar_archive_obtn.gif";
}

function chgbtn(id,imgname){
 if(document.images){
  if(topbtn[imgname]){
    document.images[id].src = topbtn[imgname].src;
	}
	else{
	  document.images[id].src = imgname;
	  }
   }
 }