function plegar(strMenu){
	document.getElementById("tbl" + strMenu).style.display = "none";
	document.getElementById("img" + strMenu).src = "images/signo_mas.gif";
	document.getElementById("hrf" + strMenu + "1").href = "javascript:desplegar('" + strMenu + "');";
	document.getElementById("hrf" + strMenu + "2").href = "javascript:desplegar('" + strMenu + "');";
}

function desplegar(strMenu){
	document.getElementById("tbl" + strMenu).style.display = "block";
	document.getElementById("img" + strMenu).src = "images/signo_menos.gif";
	document.getElementById("hrf" + strMenu + "1").href = "javascript:plegar('" + strMenu + "');";
	document.getElementById("hrf" + strMenu + "2").href = "javascript:plegar('" + strMenu + "');";
}