function ReadFileSync(sUri) {
   var async = false;

   try {

     var xmlHttp = XmlHttp.create();

     xmlHttp.open("GET", sUri, async);

   } catch (ex) {

     alert('Descripción: ' + ex.description
        //+ ' Línea ' + ex.number
        //+ ' Mensaje: ' + e.message
        );
   };

   xmlHttp.send(null);
   return xmlHttp.responseText;
}

function SendFormAsXMLHTTP(form, returnString) {
   var async = false;

   try {

     var xmlHttp = XmlHttp.create();

     sUri = form.action;

	 //según la documentación el url debe ser absoluto
	 //FireFox completa el action de los forms en caso de ser ruta relativa, IE no,
	 //por lo tanto es necesario completar
     if (sUri.toUpperCase().indexOf('HTTP://') == -1) {
     	sUri = location.protocol + '//' + location.host + sUri;
	 	alert(sUri);
	}

     xmlHttp.open(form.method, sUri, async);

   } catch (ex) {

     alert('Descripción: ' + ex.description
        //+ ' Línea ' + ex.number
        //+ ' Mensaje: ' + e.message
        );
   };

   xmlHttp.send(buildQueryString(form));
   //return xmlHttp.responseText;

   if (returnString)
     return returnString;
   else
     form.innerHTML = xmlHttp.responseText;
}

var listaLinks = [];


function copyArray(oldArray) {
	var newArray = [];

	for (var j=0; j<oldArray.length; j++)
		newArray[ newArray.length ] = oldArray[j];

	return newArray;

}


function copyArray(oldArray) {
	var newArray = [];

	for (var j=0; j<oldArray.length; j++)
		newArray[ newArray.length ] = oldArray[j];

	return newArray;

}

function ReplaceLinksWithContent() {
	var links = copyArray( document.getElementsByTagName("a") ); //obtener un array que no se modifique
	var E = null;
	var ext = null;

	var urlToLoad;

	for (var i = 0; i < links.length; i++) {
	//for (var i = links.length-1; i > -1; i--) {

		if (links[i].href.indexOf("|") > 0 || links[i].href.indexOf(escape("|")) > 0) {
			E = links[i];

			while (E.tagName!="TD")
				E = E.parentNode;


			urlToLoad = links[i].href.substring(links[i].href.indexOf("|")+1,links[i].href.length);

			if (urlToLoad.indexOf(escape("|")) > 0)
				urlToLoad = links[i].href.substring(links[i].href.indexOf(escape("|"))+3,links[i].href.length);

			ext = GetValueFromQueryString(urlToLoad, 'ext');

			if (ext != null) {
				if (listaLinks[ ext ] == null)
					listaLinks[ ext ] = [];

				listaLinks[ ext ][ listaLinks[ ext ].length ] = urlToLoad;
			}

			E.innerHTML = ReadFileSync(urlToLoad)

			//alert( urlToLoad );

			//alert(E.innerHTML);
		}
	}


	ProcessPlayers();

}



function ProcessDWGPlayer() {
	var swfs = copyArray(document.getElementsByName("unSWF"));

	var cualUrl;
	var w;
	var h;

	for (var j=0; j<swfs.length; j++) {

		cualUrl = GetValueFromQueryString(listaLinks['swf'][j], 'url');
		w = GetValueFromQueryString(listaLinks['swf'][j], 'w');
		h = GetValueFromQueryString(listaLinks['swf'][j], 'h');

		swfs[j].id = swfs[j].id + j;

		var cualSWF = new SWFObject(cualUrl, swfs[j].id, w, h, "8", "#ffffff");
		cualSWF.write(swfs[j].id);

		//alert('swfs.length al final=' + swfs.length);
		//alert(swfsOriginal.length);

	}
}

function ProcessIMGPlayer() {
	var imgs = copyArray(document.getElementsByName("unIMG"));
	var cualUrl;

	for (var j=0; j<imgs.length; j++) {

		cualUrl = GetValueFromQueryString(listaLinks['img'][j], 'url');

		imgs[j].id = imgs[j].id + j;

		imgs[j].src = cualUrl;

	}
}

function ProcessVIDEOPlayer() {
	var elems = copyArray(document.getElementsByName("unVIDEO"));
	var elemsDIV = copyArray(document.getElementsByName("unVIDEODIV"));
	var cualUrl;

	for (var j=0; j<elems.length; j++) {

		cualUrl = GetValueFromQueryString(listaLinks['video'][j], 'url');

		elems[j].id = elems[j].id + j;
		elemsDIV[j].id = elemsDIV[j].id + j;

		elems[j].src = cualUrl;

		elemsDIV[j].innerHTML = elemsDIV[j].innerHTML;  //truco para firefox
	}
}

//buscar en el DOM actualizado luego de ReplaceLinksWithContent() elementos que deban desplegarse en un player
function ProcessPlayers() {
	ProcessDWGPlayer();
	ProcessIMGPlayer();
	ProcessVIDEOPlayer();
}


function GetValueFromQueryString(queryString, sParam) {

    var sKey = sParam + "=";

    //var myregexp = new RegExp(regexstring, "gims").

    //var oParams = queryString.split("?")[1].split("&");
    var oParams = queryString.split("?");
    oParams = oParams[oParams.length-1].split("&");

    for(var i = 0; i < oParams.length; i++)
        if(oParams[i].indexOf(sKey) == 0)
            return oParams[i].substring(sKey.length);
    return null;
};


function TravelDOM(elem, actionFunction) {
	if (elem.childNodes) {
		for (var i=0; i < elem.childNodes.length; i++) {
			TravelDOM(elem.childNodes[i], actionFunction);
		}
	}
	actionFunction( elem )
}

function TravelCollection(collection, actionFunction) {
	if (collection) {
		//el recorrido se hace inverso pues si el "actionFunction" elimina elementos la colección también se acorta
		for (var i=collection.length-1; i >= 0; i--) {
			actionFunction( collection[i] )
		}
	}
}

function FindElementWithAttributeValue(elems, attName, attValue) {
	for (var i=0; i<elems.length; i++) {
		attribs = elems[i].attributes;

		for (var j=0; j < attribs.length; j++)
			if (attribs[j].nodeName == attName && attribs[j].nodeValue == attValue)
				return elems[i];
	}


	return null;
}

function buildQueryString(theForm) {
  var qs = ''
  for (e=0;e<theForm.elements.length;e++) {
    if (theForm.elements[e].name!='') {
      qs+=(qs=='')?'?':'&'
      qs+=theForm.elements[e].name+'='+escape(theForm.elements[e].value)
      }
    }
  return qs
}

/*
function CambiarImage(cual) {
	var img = document.getElementById("destino");
	if (img != null){
		img.src = cual;
	}
}

function AlterarHRefs() {
	var imgLinks = document.getElementsByTagName('A');
	var actual;

	for (var i=0; i<imgLinks.length; i++) {
	  actual = imgLinks[i].href.toUpperCase();
	  if (actual.lastIndexOf('.JPG') > 0 || actual.lastIndexOf('.GIF') > 0 || actual.lastIndexOf('.PNG') > 0)
		  imgLinks[i].href = "javascript:CambiarImage('" + actual + "')";

	 }
}*/


function AutoFitIframe(iFrameObj) {
	try {
		//alert('antes de resize');
		iFrameObj.height = iFrameObj.contentWindow.document.body.scrollHeight + 40;
		//alert('despues de resize');
	}
	catch(e)
	   {
		//alert(e);
		iFrameObj.height = 800;
	   }
}