function menu_ast()
{
    var valeur = "www";
    
    if ( document.location.pathname.lastIndexOf("/commentaires/", document.location.pathname.length) >= 0 )
    {

        var l = $("a");
        if (l.length== 0)
    	{ 
    	        alert('Imprimer non trouvé');
    	}
    	else
    	{
    	       var i = 0;
                for (i=0;i<l.length;i++ )
                {
                   
                    var fin_chaine = l[i].href.lastIndexOf("-prt.htm", l[i].href.length);
                    if ( fin_chaine >= 0 )
                    {
                        valeur = l[i].href.replace("-prt.htm",".htm");
                    }
                }
        }
    }
    else
    {
        valeur = document.location.pathname;
    }
    
	var l = $("#col2 .bloc_inner a[href*='" + valeur + "']");
	l.addClass('actif');
	l.parents('ul').addClass('on');
	if (l.length== 0)
	{         
        var fin_chaine = valeur.lastIndexOf(".htm", valeur.length);
        var debut_entier = valeur.lastIndexOf("-", fin_chaine);
        if ( ( fin_chaine >= 0 ) && ( debut_entier >= 0 ) ) 
        {
        
            var page_suite = valeur.substring(debut_entier+1, fin_chaine);       
            var page_prec = page_suite - 1 ;
            page_suite = - page_suite ;
            page_prec = - page_prec ;
            var inc = 0;            
            do 
            {
                var page_suite_str = page_suite + '.';
                var page_prec_str = page_prec + inc + '.';   
                var t2 = valeur.replace(page_suite_str,page_prec_str);
                var l = $("#col2 .bloc_inner a[href*='" + t2 + "']");
        	    l.addClass('actif');
        	    l.parents('ul').addClass('on');
        	    inc = inc + 1;

            } while ( (l.length == 0) && (inc < 10) );
        }

    }
    
}