//function hide_all(){
//    if(document.getElementById("context_menu")) document.getElementById("context_menu").style.display = "none";
//}

function show_tr(elem){
  if(document.getElementById("tr_"+elem)){
    if(document.getElementById("tr_"+elem).style.display == "none"){
       document.getElementById("tr_"+elem).style.display = "block";
       //document.getElementById("folder_"+elem).src= "/images/admin/folderopen.gif";
       if(document.getElementById("plus_"+elem).src.substring(document.getElementById("plus_"+elem).src.length, document.getElementById("plus_"+elem).src.length-8) == "last.gif")
          document.getElementById("plus_"+elem).src= "/images/tree/minus_last.gif";
       else
          document.getElementById("plus_"+elem).src= "/images/tree/minusb.gif";
    }
    else{
       document.getElementById("tr_"+elem).style.display = "none";
       //document.getElementById("folder_"+elem).src= "/images/admin/folder.gif";
       if(document.getElementById("plus_"+elem).src.substring(document.getElementById("plus_"+elem).src.length, document.getElementById("plus_"+elem).src.length-8) == "last.gif")
          document.getElementById("plus_"+elem).src= "/images/tree/plus_last.gif";
       else
          document.getElementById("plus_"+elem).src= "/images/tree/plusb.gif";

    }
  }
}

function checkChild(elem){
 if(document.getElementById("tr_"+elem)){
    if(document.getElementById("dir_"+elem).checked == true)
       document.getElementById("img_"+elem).src = '/images/admin/button/cancel_s.gif';
    else
       document.getElementById("img_"+elem).src = '/images/admin/button/blank.gif';
            
    var mylist=document.getElementById("tr_"+elem);
    var listitems= mylist.getElementsByTagName("input");

    for (i=0; i<listitems.length; i++){
        if(document.getElementById("dir_"+elem).checked == true){
            listitems[i].checked = true;
            listitems[i].disabled = true;
        }
        else{
            listitems[i].checked = false;
            listitems[i].disabled = false;
        }
    }
 }
}