dd=document;
NS=(dd.layers)?1:0;
IE=(dd.all)?1:0;
DOM=(dd.getElementById)?1:0 

function showlr(L){
if(NS) dd.layers[L].visibility='show'; 
	else if (IE) obg=dd.all[L]; 
	else obg=dd.getElementById(L); 
if(!NS)obg.style.visibility='visible'
} 

function hideall(){
	hidelr('Indice1'),
	hidelr('Indice2'),
	hidelr('Indice3'),
	hidelr('Indice4'),
	hidelr('Indice5'),
	hidelr('Indice6')
}


function hideallText(){
	hidelr('TexteHome');
	hidelr('TexteDissymetrie');
	hidelr('TexteD');
	hidelr('TexteDadj');
	hidelr('TexteI');
	hidelr('TextePearson');
	hidelr('TexteSchelling');
	hidelr('References');
}

function hidelr(L){ 
if(NS)dd.layers[L].visibility='hide'; 
else if (IE)obg=dd.all[L]; 
else obg=dd.getElementById(L); 
if(!NS)obg.style.visibility='hidden'
}