var plusImg = new Image();
	plusImg.src = "imagenes/transClosed.gif"
var minusImg = new Image();
	minusImg.src = "imagenes/transOpen.gif"

function hideLevel( _levelId, _imgId ) {
	var thisLevel = document.getElementById( _levelId );
	var thisImg = document.getElementById( _imgId );
	thisLevel.style.display = "none";
	thisImg.src = plusImg.src;
	}
	
function showLevel( _levelId, _imgId ) {
	
	var thisLevel = document.getElementById( _levelId );
	var thisImg = document.getElementById( _imgId );
	if (thisLevel){
		if ( thisLevel.style.display == "none") {
			thisLevel.style.display = "block";
			thisImg.src = minusImg.src;
			}
		else {
			hideLevel( _levelId, _imgId);
			}
		}
	else{
		alert('no existen de momento productos para esta familia');
		}
	}
function showLevelVerTodas( _levelId, _imgId ) {
	
	var thisLevel = document.getElementById( _levelId );
	var thisImg = document.getElementById( _imgId );
	//if ( thisLevel.style.display == "none") {
		thisLevel.style.display = "block";
		thisImg.src = minusImg.src;
		//}
	/*else {
		hideLevel( _levelId, _imgId);
		}*/
		
	}
function ocultarTodas(){
  var oTAB = document.getElementsByTagName("ol");
  for (LM = 1; LM < oTAB.length; LM++ ) {
      if(oTAB[LM].getAttribute((document.all ? 'className' : 'class')) == 'listaFamilias') {
			nombre=oTAB[LM].getAttribute("id");
			var thisLevel = document.getElementById(nombre);
			repTabBot=nombre.replace('laFamilia','imgFamilia');
			var thisImg = document.getElementById(repTabBot);
			hideLevel( nombre, repTabBot);
		}
   } 
}
function verTodas(){
  var oTAB = document.getElementsByTagName("dd");
  for (LM = 0; LM < oTAB.length; LM++ ) {
  var esTabla=oTAB[LM].getAttribute("id").indexOf('ddMas');
  		if (esTabla != -1){
		nombre=oTAB[LM].getAttribute("id");
		var thisLevel = document.getElementById(nombre);
		repTabBot=nombre.replace('ddMas','imgMas');
		var thisImg = document.getElementById(repTabBot);
				showLevelVerTodas( nombre, repTabBot);
		}
   } 

}