//------------------------------------------------------------
function toggleVisible(id)
{
  var obj = document.getElementById(id);
  if(obj) {
    if (obj.style.display == '') {
      obj.style.display='none';
    }
    else {
      obj.style.display='';
    }
  }
}
//------------------------------------------------------------
var currentpic = 1
;

function nextpic(max)
{
  var obj = document.getElementById("pic"+currentpic);
  if (obj)

    obj.style.display='none';
 
  currentpic = (currentpic == max) ? 1 : currentpic + 1;
  obj = document.getElementById("pic"+currentpic);
  if (obj)

    obj.style.display='';
 }
//------------------------------------------------------------
function previouspic(max)
{
  var obj = document.getElementById("pic"+currentpic);
  if (obj)

    obj.style.display='none';
 
  currentpic = (currentpic == 1) ? max : currentpic - 1;
  obj = document.getElementById("pic"+currentpic);
  if (obj)

    obj.style.display='';
 }
//------------------------------------------------------------
function openNewWindow(wndstr, url, wname, width, height) {
  var left = (screen.width - width)/2;
  var top = (screen.height - height)/2;
  wnd = eval(wndstr);
  if (!wnd || wnd.closed) {
    wnd = window.open(url, wname, 
//         "");
         "width="+width+",height="+height+",left="+left+",top="+top);
    eval(wndstr+" = wnd");
    return true;
  } else {
    wnd.focus();
    return false;
  }
}
//------------------------------------------------------------