var ie5  = (document.all && document.getElementById);
var ns6 = (!document.all && document.getElementById);
var opac = 0;
function fadeIn(szLayer,iTimeout) {
if(opac != 100){
 opac+=1;
 if(ie5) document.getElementById(szLayer).filters.alpha.opacity = opac;
 if(ns6) document.getElementById(szLayer).style.MozOpacity = opac/100;
 setTimeout('fadeIn()', iTimeout); }
}
function fadeOut(szLayer,iTimeout) {
if(opac > 0){
 opac-=1;
 if(ie5) document.getElementById(szLayer).filters.alpha.opacity = opac;
 if(ns6) document.getElementById(szLayer).style.MozOpacity = opac/100;
 setTimeout('fadeOut()', iTimeout); }
}
function setViz(objName, bOnOff) {
var obj =document.getElementById(objName);
if(bOnOff==false){
obj.style.visibility='hidden'; 
obj.style.display='none';}
else{
obj.style.visibility='visible';
obj.style.display='block';}
}
function setOthers(srcObj, bOnOff) {
if(srcObj!='JF') setViz('JF', bOnOff);
if(srcObj!='BW') setViz('BW', bOnOff);
if(srcObj!='HL') setViz('HL', bOnOff);
if(srcObj!='FB') setViz('FB', bOnOff);
}
function setAcc(srcObj, bOnOff) {
if(srcObj!='TC') setViz('TC', bOnOff);
if(srcObj!='HC') setViz('HC', bOnOff);
if(srcObj!='TH') setViz('TH', bOnOff);
}
function setdjs(srcObj, bOnOff) {
if(srcObj!='AB') setViz('AB', bOnOff);
if(srcObj!='MR') setViz('MR', bOnOff);
if(srcObj!='LZ') setViz('LZ', bOnOff);
if(srcObj!='VN') setViz('VN', bOnOff);
if(srcObj!='AM') setViz('AM', bOnOff);
if(srcObj!='VB') setViz('VB', bOnOff);
}
function setTips(srcObj, bOnOff) {
if(srcObj!='air') setViz('air', bOnOff);
if(srcObj!='cabs') setViz('cabs', bOnOff);
if(srcObj!='dir') setViz('dir', bOnOff);
}