var strAbaAberta;

function abre_fecha(id){
	if (strAbaAberta != undefined)
	{
		document.getElementById(strAbaAberta+"_td").className = "off";
		document.getElementById(strAbaAberta+"_lnk").style.fontWeight = "normal";
		document.getElementById(strAbaAberta+"_div").style.display = "none";

		document.getElementById(id+"_td").className = "on";
		document.getElementById(id+"_lnk").style.fontWeight = "bold";
		document.getElementById(id+"_div").style.display = "block";

		strAbaAberta = id;
	}
	else
	{
		document.getElementById(id+"_td").className = "on";
		document.getElementById(id+"_lnk").style.fontWeight = "bold";
		document.getElementById(id+"_div").style.display = "block";

		strAbaAberta = id;
	}	
}