taihi=new Array();
	function hyouji(doko){
	if(document.layers)
		{kazu=document.layers.length/2;
		lay_name=document.layers["lay"+doko];
		tit_name=document.layers["title"+doko];
		if(lay_name.visibility == 'show')
			{lay_name.visibility='hidden';
			dotti=1;
			 }
		 else {lay_name.visibility='show';
			tate=tit_name.pageY+tit_name.clip.height;
			yoko=tit_name.pageX;
			lay_name.top=tate;
			lay_name.left=yoko;
			dotti=0;
			}
		if(doko<kazu-1)
			{
			for(i=doko+1; i<kazu; i++){
				tate=document.layers["lay"+doko].clip.height;
				if(dotti == 1)
					document.layers["title"+i].moveBy(0,-tate);
				else 
					document.layers["title"+i].moveBy(0,tate);
				if(document.layers["lay"+i].visibility=='show')
					{
					if(dotti == 1)
						document.layers["lay"+i].moveBy(0,-tate);
					else 
						document.layers["lay"+i].moveBy(0,tate);
					}
				}
			}
		}
	else if((document.getElementById) && (!document.all))
		{
		lay_name=document.getElementById("lay"+doko);
		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"+doko);
		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[doko];
			}
		 else {lay_name.style.visibility='visible';
		       lay_name.style.display="block";
			taihi[doko]=lay_name.innerHTML;
		       if(navigator.appVersion.indexOf("MSIE 4.")!=-1)
				lay_name.innerHTML="<br>"+taihi[doko];
			}
		}
	}
	if(document.layers)
		{document.write('<style type="text/css">span{position:absolute;visibility:hidden;}</style>');}
	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>');}