var ns4 = document.layers;
var ns6 = document.getElementById && !document.all;
var ie4 = document.all;


function ecrireDansLayer(nomLayer,contenu)
	{
	if(ns4)
    	{
      	document.nomLayer.document.write(contenu);
      	document.nomLayer.document.close();
     	}
    if(ns6)
    	{
      	document.getElementById(nomLayer).innerHTML = contenu;
      	document.getElementById(nomLayer).style.display='block'
    	}
    if(ie4)
    	{
     	document.all(nomLayer).innerHTML=contenu;
      	document.all(nomLayer).style.display='block'
    	}
 
}
function lireLayer(nomLayer)
	{
	if(ns4)
    	{
      	contenu=document.nomLayer.innerHTML;
      	//document.nomLayer.document.close();
     	}
    else if(ie4)
    	{
      	contenu=document.all(nomLayer).innerHTML;
    //  document.all(nomLayer).style.display='block'
    	}
	else
		{
			contenu=document.getElementById(nomLayer).innerHTML ;
     
		}
 return contenu;
 
}
	// Example: obj = findObj("image1");
function findObj(theObj, theDoc)
{
	
  var p, i, foundObj;
  
  if(!theDoc) theDoc = document;
  if( (p = theObj.indexOf("?")) > 0 && parent.frames.length)
  {
    theDoc = parent.frames[theObj.substring(p+1)].document;
    theObj = theObj.substring(0,p);
  }
  if(!(foundObj = theDoc[theObj]) && theDoc.all) foundObj = theDoc.all[theObj];
  for (i=0; !foundObj && i < theDoc.forms.length; i++) 
    foundObj = theDoc.forms[i][theObj];
  for(i=0; !foundObj && theDoc.layers && i < theDoc.layers.length; i++) 
    foundObj = findObj(theObj,theDoc.layers[i].document);
  if(!foundObj && document.getElementById) foundObj = document.getElementById(theObj);
 
  return foundObj;
}

// * Dependencies * 
// this function requires the following snippets:
// JavaScript/readable_MM_functions/findObj
//
// Accepts a variable number of arguments, in triplets as follows:
// arg 1: simple name of a layer object, such as "Layer1"
// arg 2: ignored (for backward compatibility)
// arg 3: 'hide' or 'show'
// repeat...
//
// Example: showHideLayers(Layer1,'','show',Layer2,'','hide');
function showHideLayers()
{ 

  var i, visStr, obj, args = showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3)
  {
    if ((obj = findObj(args[i])) != null)
    {
      visStr = args[i+2];
      if (obj.style)
      {
        obj = obj.style;
        if(visStr == 'show') visStr = 'visible';
        else if(visStr == 'hide') visStr = 'hidden';
      }
      obj.visibility = visStr;
    }
  }
  
}

function deplacerLayer(nomLayer,x,y)
	{
	objet=findObj(nomLayer);
  
    if(ns4) 
		{
		objet.left = x
		objet.top = y
		}
    	else 
		{
		objet.style.left = x;
		objet.style.top = y;
		}
	}
 
 function getCoordonneesLayer(nomLayer)
 	{
	res=new Array(2);
	objet=findObj(nomLayer);
	if(ns4) 
		{
		res[0]=objet.left;
		res[1]=objet.top;
		}
    	else 
		{
		res[0]=objet.style.left;
		res[1]=objet.style.top;
		}
	return res;
	}
	
 function getDimensionsLayer(nomLayer)
 	{
	res=new Array(2);
	objet=findObj(nomLayer);
	if(ns4) 
		{
		res[0]=objet.height;
		res[1]=objet.width;
		}
    	else 
		{
		res[0]=objet.style.height;
		res[1]=objet.style.width;
		}
	return res;
	}
function alignLayer()
{ 
  var i, visStr, obj, args = alignLayer.arguments;
  for (i=0; i<(args.length-2); i+=3)
  {
    if ((obj = findObj(args[i])) != null)
    {
      visStr = args[i+2];
      if (obj.style)
      {
        obj = obj.style;
        if(visStr == 'show') visStr = 'visible';
        else if(visStr == 'hide') visStr = 'hidden';
      }
      obj.visibility = visStr;
    }
  }
}

var popUpWin=0;
function popUpWindow(URLStr, left, top, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menub ar=no,scrollbar=no,resizable=no,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}


	// ajout si besoin de la méthode push à l'objet Array, compatible js 1.3
	if (Array.prototype.push && ([0].push(true)==true))
        {
		Array.prototype.push = null;
		}


	if(!Array.prototype.push) 
		{
		function array_push() 
			{
        	for(i=0;i<arguments.length;i++)
				{
            	this[this.length] = arguments[i];
        		}
        	return this.length;
    		}
		}
    Array.prototype.push = array_push;