function treeclosed(name){
if(document.getElementById){
var id=document.getElementById(name).style;
if(id.display=="block"){
id.display="none";
}else{
id.display="block";
}
return false;
}else{
return true;
}
}

function treeopen(name){
if(document.getElementById){
var id=document.getElementById(name).style;
if(id.display=="none"){
id.display="block";
}else{
id.display="none";
}
return false;
}else{
return true;
}
}