taihi=new Array();
	function mokuji(id){
	if(document.layers)
		{}
	else if((document.getElementById) && (!document.all))
		{
		lay_name=document.getElementById("lay"+id);
		if(lay_name.style.visibility == 'visible')
			{lay_name.style.visibility='hidden';
			lay_name.style.display="none";
			}
		 else {lay_name.style.visibility='visible';
				lay_name.style.display="block";
			}
		}
	else if(document.all)
		{
		lay_name=document.all("lay"+id);
		if(lay_name.style.visibility == 'visible')
			{lay_name.style.visibility='hidden';
			 lay_name.style.display="none";
			 if(navigator.appVersion.indexOf("MSIE 4.")!=-1)
				lay_name.innerHTML=taihi[id];
			}
		 else {lay_name.style.visibility='visible';
		       lay_name.style.display="block";
			taihi[id]=lay_name.innerHTML;
		       if(navigator.appVersion.indexOf("MSIE 4.")!=-1)
				lay_name.innerHTML="<br>"+taihi[id];
			}
		}
	}

	if(document.layers)
		{}
	else if((document.getElementById) && (!document.all))
		{document.write('<style type="text/css">span{position:relative;display:none;}</style>');}
	else if(document.all)
		{document.write('<style type="text/css">span{position:relative;display:none;}</style>');}