function open_ctg1() {  
ctg1.style.visibility="visible"; 
ctg1_text.style.visibility="visible";	
} 
function close_ctg1() { 
ctg1.style.visibility="hidden"; 
ctg1_text.style.visibility="hidden"; 
} 
function open_ctg2() {  
ctg2.style.visibility="visible"; 
ctg2_text.style.visibility="visible";	
} 
function close_ctg2() { 
ctg2.style.visibility="hidden"; 
ctg2_text.style.visibility="hidden"; 
} 
function open_ctg3() {  
ctg3.style.visibility="visible"; 
ctg3_text.style.visibility="visible";	
} 
function close_ctg3() { 
ctg3.style.visibility="hidden"; 
ctg3_text.style.visibility="hidden"; 
} 
function open_ctg4() {  
ctg4.style.visibility="visible"; 
ctg4_text.style.visibility="visible";	
} 
function close_ctg4() { 
ctg4.style.visibility="hidden"; 
ctg4_text.style.visibility="hidden"; 
} 
function open_ctg5() {  
ctg5.style.visibility="visible"; 
ctg5_text.style.visibility="visible";	
} 
function close_ctg5() { 
ctg5.style.visibility="hidden"; 
ctg5_text.style.visibility="hidden"; 
} 
function open_ctg6() {  
ctg6.style.visibility="visible"; 
ctg6_text.style.visibility="visible";	
} 
function close_ctg6() { 
ctg6.style.visibility="hidden"; 
ctg6_text.style.visibility="hidden"; 
} 
function open_ctg7() {  
ctg7.style.visibility="visible"; 
ctg7_text.style.visibility="visible";	
} 
function close_ctg7() { 
ctg7.style.visibility="hidden"; 
ctg7_text.style.visibility="hidden"; 
} 
function open_ctg8() {  
ctg8.style.visibility="visible"; 
ctg8_text.style.visibility="visible";	
} 
function close_ctg8() { 
ctg8.style.visibility="hidden"; 
ctg8_text.style.visibility="hidden"; 
} 
function open_ctg9() {  
ctg9.style.visibility="visible"; 
ctg9_text.style.visibility="visible";	
} 
function close_ctg9() { 
ctg9.style.visibility="hidden"; 
ctg9_text.style.visibility="hidden"; 
} 


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 swapImgRestore() { //v3.0  
var i,x,a=document.sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;  
}