function isShow3(tab2_id,div2_id,t_Style,e,f)    //
{
   for(var i = 0;i < e;i++)
   {
    document.getElementById("divs2"+f+"_"+i).style.display="none";
	  document.getElementById("tabs2"+f+"_"+i).style.backgroundImage='url()';
	  document.getElementById("tabs2"+f+"_"+i).className="li";
   }
   /*µ±Ç°×´Ì¬*/
   document.getElementById(div2_id).style.display=t_Style;
   document.getElementById(tab2_id).style.backgroundImage='url(images_index/bg_title3_on.gif)';
   document.getElementById(tab2_id).className="on";
}