function FVTB(cual) {
	for(i=1; i<6; i++) {
		if(cual==i) {
			document.getElementById("FVTB"+i).className = "selected";
			document.getElementById("C_FVTB"+i).style.display = "block";
		}
		else
		{
			document.getElementById("FVTB"+i).className = "";
			document.getElementById("C_FVTB"+i).style.display = "none";
		}
	}
}