var RACINE = "http://www.parlonsjardin.fr";

function diaporama()
{
	
	diapo_ex=document.getElementById('bloc1-diapo'+diapo);
	
	//Roulement entre le buffer et la diapo visible
	if(diapo==0)
		diapo=1;
	else if(diapo==1)
		diapo=0;
	
	diapo_new=document.getElementById('bloc1-diapo'+diapo);	
	
	//Selection de l'image de la diapo
	if(p>fin)
		p=0;
		
	diapo_new.src=diapositive[p];
	
	diapo_new.style.zIndex='1';
	diapo_ex.style.zIndex='0';
	
	img_fade=diapo_new;
	img_fade2=diapo_ex;
	
	fade();	
	
	p++;
	setTimeout("diaporama()",tempo*1000);
}

function fade()
{
	if(navigator.appName!='Netscape')
	{
		//IE		
		img_fade.style.filter="alpha(opacity='"+opa+"')";
		img_fade2.style.filter="alpha(opacity='"+opa2+"')";
		
		opa=opa-10;
		opa2+=10;
		
		if(opa>=0 || opa2<=100)
		{
			setTimeout("fade()",50);
		}
		else
		{
			opa=100;
			opa2=0;
		}		
	
	}
	else
	{
		//FF, CHROME
		img_fade.style.MozOpacity=opa/100;
		img_fade2.style.MozOpacity=opa2/100;
		
		opa=opa-10;
		opa2+=10;
		
		if(opa>=0 || opa2<=1)
		{
			setTimeout("fade()",50);
		}
		else
		{
			opa=100;
			opa2=0;
		}
	}
}

function ecrire_cookie(nom, valeur, expires) {
	document.cookie=nom+"="+escape(valeur) + ((expires==null) ? "" : ("; expires="+expires.toGMTString()));
}

function arguments_cookie(offset){
  var endstr=document.cookie.indexOf (";", offset);
  if (endstr==-1) endstr=document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr)); 
}

function lire_cookie(nom) {
  var arg=nom+"=";
  var alen=arg.length;
  var clen=document.cookie.length;
  var i=0;
  while (i<clen){
    var j=i+alen;
    if (document.cookie.substring(i, j)==arg)
       return arguments_cookies(j);
    i=document.cookie.indexOf(" ",i)+1;
    if (i==0) break;
  }
  return null; 
}