if(document.images){
	for(x=1;x<7;x++){
		eval("bot"+x+"on=new Image(); bot"+x+"on.src='/img/boton"+x+"_on.gif';");
		eval("bot"+x+"off=new Image(); bot"+x+"off.src='/img/boton"+x+"_off.gif';");
		
		eval("flecha"+x+"on=new Image(); flecha"+x+"on.src='/img/flecha_on.gif';");
		eval("flecha"+x+"off=new Image(); flecha"+x+"off.src='/img/flecha_off.gif';");	
	}
	
	ffon=new Image(); ffon.src='/img/f_on.gif';
	ffoff=new Image(); ffoff.src='/img/f_off.gif';
}
		
function cambia(nombre, imagen){
	document[nombre].src=eval(imagen).src;
}

function pon(num){
	cambia("f"+num,"flecha"+num+"on");
	cambia("b"+num,"bot"+num+"on");	
}

function quita(num){
	cambia("f"+num,"flecha"+num+"off");
	cambia("b"+num,"bot"+num+"off");	
}

function fon(num){
	cambia("ff"+num,"ffon");
}

function foff(num){
	cambia("ff"+num,"ffoff");	
}

function ponTexto(frase){
	document.all['textod'].innerHTML="<FONT STYLE=\"font-size:10px;\">"+frase+"</FONT>";
}