function tog(item){
   obj=document.getElementById(item);
   visible=(obj.style.display!="none");
   if (visible) {
     obj.style.display="none";
   } else {
      obj.style.display="block";
   }
}
function togOn(item){
   obj=document.getElementById(item);
   visible=(obj.style.display!="none");
   if (visible) {
      obj.style.display="block";
   } else {
      obj.style.display="block";
   }
}
function togOff(item){
   obj=document.getElementById(item);
   visible=(obj.style.display!="none");
   if (visible) {
     obj.style.display="none";
   } else {

}
}