var ouverte = 0 ;

function switch_color (t,level,on) {
		
		if (on == 1) {
t.className = 'niveau'+level+'_over';
	} else {
		t.className = 'niveau'+level;
	}
	
}

function switch_text_color (t,level,on) {
	
		if ((on == 1 || on == 2) && t != permanent) {

			t.className = level+'_over';
			
			if (on == 2) {
				permanent.className = level;
				obj.className = level ;		
				obj = t ;
				permanent = t ;
			}
	
		} else if (t!=permanent) {
			t.className = level ;
		}
}

function goToURL() { 
  var i, args=goToURL.arguments; document.returnValue = false;
  
  for (i=0; i<(args.length-1); i+=2) eval(args[i]+".location='"+args[i+1]+"'");
}

function ouvrir_rubrique (arborescence) {
	
	ouverte = arborescence ;

	/* alert("arborescence : "+ouverte); */
	
	swap_couche(arborescence,'') ;

}	

function fermer_rubrique () {

/* alert("fermer : "+ouverte); */

swap_couche(ouverte,'') ;
	
	

}