/******déclarations des variables globales*************/
/*popup image */
var imzoom = null;
var film = null;
var nn4 = (document.layers);
var dom = (document.getElementById);
var iex = (document.all);
var pasBP = 0;

function mention()
{
	var phrase;

      if (document.getElementById)
			{
        imzoom = document.getElementById('imzoom');
        film = document.getElementById('film');
      }
      else
			{ 
				if (document.all) 
				{
          imzoom = document.all.imzoom;
          film = document.all.film;
      	}
      	else
				{
  			  if (document.layers) 
					{
            imzoom = document.layers.imzoom;
            film = document.layers.film;
      		}
    		}
			}
			imzoom.style.display = 'none';
			var largeur=500;
			var hauteur=600;
  		if (imzoom) 
			{
				var valeur = Math.round((screen.height - hauteur) / 2) - 50;
				if (valeur<0)
				{imzoom.style.top = fixed_top(imzoom,0);}
				else
				{imzoom.style.top =  fixed_top(imzoom,50);}
				var valeur = Math.round((screen.width - largeur) / 2) - 50;
				if (valeur<0)
				{imzoom.style.left = fixed_left(imzoom,0);}
				else
				{imzoom.style.left = fixed_left(imzoom,valeur);}
    		film.style.visibility = 'hidden';
    		imzoom.style.display = 'block';
    		imzoom.style.visibility = 'visible';
			}
}

function fermer()
{
    imzoom.style.display = 'none';
    film.style.visibility = 'visible';
}



function fixed_top(select,offS){
		return Number(offS+document.documentElement.scrollTop+document.body.scrollTop)+'px';
	}
	function fixed_left(select,offS){
		return Number(offS+document.documentElement.scrollLeft+document.body.scrollLeft)+'px';
	}
	function fixed_bottom(select,offS){
		return Number(-offS+document.documentElement.clientHeight-select.offsetHeight+document.documentElement.scrollTop+document.body.scrollTop)+'px';
	}
	function fixed_right(select,offS){
		return Number(-offS+document.documentElement.clientWidth-select.offsetWidth+document.documentElement.scrollLeft+document.body.scrollLeft)+'px';
	}