function MM_findObj(n, d) { //v4.01 
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 && d.getElementById) x=d.getElementById(n); return x; 
} 

function MM_showhideLayers() { //v6.0 
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')?'block':(v=='hide')?'none':v; } 
obj.display=v; } 
}

function showhideLayers(obj,image) { //v1.0
var v,obj; 
image=MM_findObj(image);
if ((obj=MM_findObj(obj))!=null) { 
	v=obj.style.display; 
	if (v == 'none' ) {
		disp = 'block';
		img = '/image/'+lang+'/retract.gif';
	}
	else {
		disp = 'none';
		img = '/image/'+lang+'/expand.gif';

	}
	obj.style.display = disp;
	image.src = img;
	
 } 
}