Rollimage = new Array();
   
Rollimage[0] = new Image() ;
Rollimage[0].src = "tree_main_plus.gif" ;

Rollimage[1] = new Image();
Rollimage[1].src = "tree_main_plus_active.gif";

CloseImage = new Array();
CloseImage[0] = new Image(19,19) ;
CloseImage[0].src = "images/close_down.jpg" ;

CloseImage[1] = new Image(19,19);
CloseImage[1].src = "images/close_up.jpg";

var browserType;

if (document.layers) {browserType = "nn4"}
if (document.all) {browserType = "ie"}
if (window.navigator.userAgent.toLowerCase().match("gecko")) {
   browserType= "gecko"
}

function toggleDiv(id){
     var el;
     
	 el = document.getElementById(id);
     if(el.style.display != 'none')
     {
       el.style.display = 'none';
     }
     else
     {
       el.style.display = 'inline';
     }
}



function hide(id) {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById(id)');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById(id)');
  else
     document.poppedLayer = eval('document.layers[id]');
  document.poppedLayer.style.display = "none";
}

function show(id) {
  if (browserType == "gecko" )
     document.poppedLayer = eval('document.getElementById(id)');
  else if (browserType == "ie")
     document.poppedLayer = eval('document.getElementById(id)');
  else
     document.poppedLayer = eval('document.layers[id]');
  document.poppedLayer.style.display = "inline";
}

function ajaxLoader(url,id) {
  if (document.getElementById) {
    var x = (window.ActiveXObject) ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
  }
  if (x) {
    x.onreadystatechange = function() {
      if (x.readyState == 4 && x.status == 200) {
        el = document.getElementById(id);
        el.innerHTML = x.responseText;
      }
    }
    x.open("GET", url, true);
    x.send(null);
  
  }
  return false;
}

function resize(id){  
    var frame = document.getElementById(id);  
    var htmlheight = document.body.parentNode.scrollHeight;  
    var windowheight = window.innerHeight;  
    if ( htmlheight < windowheight ) 
    { 
        document.body.style.height = windowheight + "px"; frame.style.height = windowheight + "px"; 
    }  
    else 
    { 
        document.body.style.height = htmlheight + "px"; frame.style.height = htmlheight + "px"; 
    }
} 
function wopen(url, name, w, h)
{
    alert(w);
    w += 32;
    h += 96;
    
    //window.open(url,name,'width=500, height=500, scrollbars=yes, resizable=yes');
    var win = window.open(url,name,'width=' + w + ', height=' + h + ', ' +'location=no, menubar=no, ' +'status=no, toolbar=no, scrollbars=yes, resizable=no');
    win.resizeTo(w, h);
    win.focus();
    return false;
}

function showPopup()
{
	//position du popup
	
	var xposition  = (screen.width - document.getElementById("newBuilding").clientWidth) / 2 - 15;
    var yposition  = ((screen.height - document.getElementById("newBuilding").clientHeight) / 2) - 100;
	document.getElementById("newBuilding").style.visibility = "visible";
    document.getElementById("newBuilding").style.left = xposition + "px";
    document.getElementById("newBuilding").style.top = yposition + "px";
	document.getElementById("greypage").style.visibility = "visible";
}
function hidePopup()
{
    document.getElementById("newBuilding").style.visibility = "hidden";
    document.getElementById("greypage").style.visibility = "hidden";
}

function switchcolor(menu, img)
{
	document.body.style.cursor='pointer'
	document.getElementById(img).src = 'images/tree_main_plus_active.gif';
	document.getElementById(menu).style.color="#F00000";
	document.getElementById(menu).style.textDecoration="underline";
}

function unswitchcolor(menu, img)
{
	document.body.style.cursor='default'
	document.getElementById(img).src = 'images/tree_main_plus.gif';
	document.getElementById(menu).style.color="#FFFFFF";
	document.getElementById(menu).style.textDecoration="none";
}