// JavaScript Document

	var  lasttd=null;
	function changbgcolor(td)
	{
	var tag = document.getElementById("tag1");
	  if(lasttd!=null)
	  {
	  	tag.className="menu_tag1";
		lasttd.className="menu_tag1";
	  }
	  tag.className="menu_tag1";
	  td.className="menu_tag";
	  
	  lasttd=td;
	  
	}
	
	var lasttdfont = null;
	var lastdivshow = null;
	function menushow(tdfont,divshow){
		var dshow = document.getElementById("d_show"+divshow);
		if(lasttdfont!=null){
			lasttdfont.className="left_menu";
			if(lastdivshow!=null){
				lastdivshow.style.display = "none"
			}
			if(dshow!=null){
				dshow.style.display = "block"
				lastdivshow = dshow;
			}
		}
		tdfont.className="left_menu_font";
		lasttdfont = tdfont;
	}