function showTab(ID){
try
{
for(var i=1;i<4;i++){
if(ID==i){
document.getElementById('tab'+i).blur();
document.getElementById("tab"+i).className="on";
document.getElementById("cont"+i).style.display="block";
}else{
document.getElementById("tab"+i).className="off";
document.getElementById("cont"+i).style.display="none";
}
}
return false;
}catch(ex){}
}
 
function showTab2(ID){
try
{
for(var i=1;i<3;i++){
if(ID==i){
document.getElementById('tab'+i).blur();
document.getElementById("tab"+i).className="on";
document.getElementById("cont"+i).style.display="block";
}else{
document.getElementById("tab"+i).className="off";
document.getElementById("cont"+i).style.display="none";
}
}
return false;
}catch(ex){}
}
 
function showAbout(ID){
for(var i=1;i<5;i++){
if(ID==i){
document.getElementById('about'+i).blur();
document.getElementById("about"+i).className="on";
document.getElementById("yitian"+i).style.display="block";
}else{
document.getElementById("about"+i).className="off";
document.getElementById("yitian"+i).style.display="none";
}
}
return false;
}
 
function showGraceful(ID){
for(var i=1;i<4;i++){
if(ID==i){
document.getElementById('graceful'+i).blur();
document.getElementById("graceful"+i).className="on";
document.getElementById("grace"+i).style.display="block";
}else{
document.getElementById("graceful"+i).className="off";
document.getElementById("grace"+i).style.display="none";
}
}
return false;
}