Some js code I wrote ....

// Category not displayed
// Function xuanzhong (name, con ){

// For (VAR I = 0; I <con; I ++ ){
//// $ ("#" + Name + I). Hide ();
// Var TRS = $ ("TR ");
// If ("Tr _" + name = "tr_1") // equal to tr_1
//{
// For (var j = 0; j <TRS. length; j ++ ){
// If (TRs [J]. ID! = "Tr_1" & TRS [J]. ID! = ""){
// TRS [J]. style. Display = "NONE ";
// $ ('# Xianshi' + name). Hide ();
// $ ('# Buxianshi' + name). Show ();
//}
//}
//}
// Else // not equal to tr_1
//{
// For (var j = 0; j <TRS. length; j ++ ){
// If (TRs [J]. ID! = Name + I & TRS [J]. ID! = "" & TRS [J]. ID! = "Tr_1 "){
// Var num = Name. tostring () + I. tostring ();
// $ ('# Xianshi' + name). Hide ();
// $ ('# Buxianshi' + name). Show ();
// If (parseint (Num) <= parseint (TRs [J]. ID )){
// $ ("#" + TRS [J]. ID). Hide ();
//// $ ('#' + Num). Hide ();
//
//// $ ('# Xianshi' + name). Show ();
//// $ ('# Buxianshi' + name). Hide ();

//}
//}
//}
//}

//}
//}
//// Category display
// Function buxuanzhong (name, con ){

// For (VAR I = 0; I <con; I ++ ){
// $ ("#" + Name + I). Show ();
// $ ('# Xianshi' + name). Show ();
// $ ('# Buxianshi' + name). Hide ();
//}
//}