// Ejecutar AJAX
function llamadaDatos(pMetodo, pURL, pDatos, pDiv) {
  
  pDatos = parsearCaracteres(pDatos);
   
  new Ajax.Updater(pDiv, pURL,
  {
    method: pMetodo,
    parameters: pDatos,
    evalScripts: true,
    asynchronous: true,                                                        
    onSuccess: function(resp) {												
    $(pDiv).innerHTML = resp.responseText;
  },
  
    onFailure: function(resp) {
      alert("Se ha producido un error y la operación no podrá ser terminada.");
    }
  });      
}

function parsearCaracteres (pDatos){
  
  var Datos = pDatos.replace(/\&/g,'&');  
  return Datos;
  
}

var horizontal_offset="-75px" // distancia horizontal de la caja de pista desde el enlace

/////No se necesita ninguna modificación a partir de aquí

var vertical_offset="0" //distancia vertical desde el enlace a la caja de pista. No se necesita cambiar.
var ie=document.all
var ns6=document.getElementById&&!document.all

function getposOffset(what, offsettype){
	
	var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
	var parentEl=what.offsetParent;
	
	while (parentEl!=null){
		totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
		parentEl=parentEl.offsetParent;
	}
	return totaloffset;

}

function iecompattest(){
	return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function clearbrowseredge(obj, whichedge){
	
	var edgeoffset=(whichedge=="rightedge")? parseInt(horizontal_offset)*-1 : parseInt(vertical_offset)*-1
	
	if (whichedge=="rightedge") {
		var windowedge=ie && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-30 : window.pageXOffset+window.innerWidth-40
		dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
		if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
			edgeoffset=dropmenuobj.contentmeasure+obj.offsetWidth+parseInt(horizontal_offset)
	}else{
		var windowedge=ie && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
		dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
		if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure)
			edgeoffset=dropmenuobj.contentmeasure-obj.offsetHeight
	}
	
	return edgeoffset
}

function muestrapista(contenido, obj, e, anchotip){
	if ((ie||ns6) && document.getElementById("cajatip")) {
		dropmenuobj=document.getElementById("cajatip")
		dropmenuobj.innerHTML=contenido
		dropmenuobj.style.left=dropmenuobj.style.top=-500
		if (anchotip!="") {
			dropmenuobj.widthobj=dropmenuobj.style
			dropmenuobj.widthobj.width=anchotip
		}
		
		dropmenuobj.x=getposOffset(obj, "left")
		dropmenuobj.y=getposOffset(obj, "top")
		dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+obj.offsetWidth+"px"
		dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+"px"
		dropmenuobj.style.visibility="visible"
		obj.onmouseout=ocultatip
	}
	
}

function ocultatip(e){
	dropmenuobj.style.visibility="hidden"
	dropmenuobj.style.left="-500px"
}

function creacajatip(){
	var divblock=document.createElement("div")
	divblock.setAttribute("id", "cajatip")
	document.body.appendChild(divblock)
}

if (window.addEventListener)
	window.addEventListener("load", creacajatip, false)
else if (window.attachEvent)
	window.attachEvent("onload", creacajatip)
else if (document.getElementById)
	window.onload=creacajatip