<script language="JavaScript"> 
<!-- 
function MM_findObj(n, d) { //v4.0 
var p,i,x; if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) { 
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);} 
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n]; 
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document); 
if(!x && document.getElementById) x=document.getElementById(n); return x; 
} 
function MM_showHideLayers() { //v3.0 
var i,p,v,obj,args=MM_showHideLayers.arguments; 
for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2]; 
if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; } 
obj.visibility=v; } 
} 
function sh(na,nat) { 
alert("fds");
if (na.style.visibility== 'hidden') { 
na.style.visibility= 'visible' 
} else { 
na.style.visibility= 'hidden' 
nat.className='button1' 
} 
} 
function sh2(nt,nl) { 
alert("fds");
test=xwgl1.style.visibility=='visible' || lbgl1.style.visibility=='visible' || mbgl1.style.visibility=='visible' || sggl1.style.visibility=='visible' || yhgl1.style.visibility=='visible' || stgl1.style.visibility=='visible' || zxbz1.style.visibility=='visible' || tcxt1.style.visibility=='visible' 
if (test==true) { 
MM_showHideLayers('xwgl1','','hide','lbgl1','','hide','mbgl1','','hide','sggl1','','hide','yhgl1','','hide','stgl1','','hide','zxbz1','','hide','tcxt1','','hide'); 
xwgl.className='button2'; 
lbgl.className='button2'; 
mbgl.className='button2'; 
sggl.className='button2'; 
yhgl.className='button2'; 
stgl.className='button2'; 
zxbz.className='button2'; 
tcxt.className='button2'; 
nt.className='button3'; 
nl.style.visibility= 'visible'; 
} else { 
if (nt.className!='button3') { 
nt.className='button1' 
} 
} 
} 
function mo(na) { 
alert("fds");
if (na.className=='button1') { 
na.className="button2" 
} 
} 
//--> 
</script>