function createREQ() {

	try {

		 req = new XMLHttpRequest(); /* p.e. Firefox */

		 } catch(err1) {

		   try {

		   req = new ActiveXObject('Msxml2.XMLHTTP'); /* algunas versiones IE */

		   } catch (err2) {

			 try {

			 req = new ActiveXObject("Microsoft.XMLHTTP"); /* algunas versiones IE */

			 } catch (err3) {

			  req = false;

			 }

		   }

		 }

		 return req;

}

function requestGET(url, query, req) {

	myRand=parseInt(Math.random()*99999999);

	req.open("GET",url+'?'+'query'+'&rand='+myRand,true);

	req.send(null);

}

function requestPOST(url, query, req) {

	req.open("POST", url,true);

	req.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

	req.send(query);

}

function doCallback(callback,item) {

	eval(callback + '(item)');

}



function doAjax(url,query,callback,reqtype,getxml) {

	// crea la instancia del objeto XMLHTTPRequest 

	var myreq = createREQ();

	

	myreq.onreadystatechange = function() {

	if(myreq.readyState == 4) { 

	   if(myreq.status == 200) {

		  var item = myreq.responseText;

		  if(getxml==1) {

			 item = myreq.responseXML;

		  }

		  doCallback(callback, item);

		}

	  }else{

		  parent.document.getElementById("contenido").innerHTML="<img src='images/loading.gif'>";

	  }

	}

	

	if(reqtype=='post') {

	requestPOST(url,query,myreq);

	} else {

	requestGET(url,query,myreq);

	}

}

function doAjax2(capa,url,query,callback,reqtype,getxml) {

	// crea la instancia del objeto XMLHTTPRequest 

	var myreq = createREQ();

	

	myreq.onreadystatechange = function() {

	if(myreq.readyState == 4) {

	   if(myreq.status == 200) {

		  var item = myreq.responseText;

		  if(getxml==1) {

			 item = myreq.responseXML;

		  }

		  doCallback(callback, item);

		}

	  }else{

		  parent.document.getElementById(capa).innerHTML="<img src='images/loading.gif'>";

	  }

	}

	

	if(reqtype=='post') {

	requestPOST(url,query,myreq);

	} else {

	requestGET(url,query,myreq);

	}

}



function doAjax3(url,query,callback,reqtype,getxml) { 

	// crea la instancia del objeto XMLHTTPRequest 

	var myreq = createREQ();

	var item = null; 

	myreq.onreadystatechange = function() {

		if(myreq.readyState == 4) { 

			if(myreq.status == 200) {

				item = myreq.responseText;

				if(getxml==1) {

					item = myreq.responseXML;			

				} 

			doCallback(callback, item);

		   }

		   else if(myreq.status == 404){ 

			   doCallback(callback, "Error interno cod: 1");

		   }

		   else if(myreq.status == 403){

			   doCallback(callback, "Error interno cod: 2");

		   }

		}

	}

	if(reqtype=='post') {

		requestPOST(url,query,myreq);

	} 

	else {

		requestGET(url,query,myreq);

	}

}



function arreglaTexto(texto){
	return unescape(texto.replace(/\+/gi," "));
}

function cargaCapa(html){
	var capa=parent.document.getElementById("contenido");
	capa.innerHTML=arreglaTexto(html);
}

function carga(direccion){
	cargaCapa("<div align=left><img src='images/loading.gif'></div>");	
	doAjax(direccion,'', 'cargaCapa', 'get' , 0);
}

function cargaCapo(html){	
	parent.document.getElementById('contenido').innerHTML= arreglaTexto(html);	
}

function entrar(formu){
	if((formu.idinscrito.value=="")||(formu.pass.value=="")){
		alert("ERROR: Faltan campos obligatorios");
		return false;
	}else{
		var capa=parent.document.getElementById("infouser");
		doAjax2(capa,'scripts/identificacion.scr.php','idinscrito='+formu.idinscrito.value+'&pass='+formu.pass.value+'','acceso','post',0);
	}
}	

function acceso(html){
	parent.document.getElementById('contenido').innerHTML= arreglaTexto(html);
	window.location.reload();
}

function salir(){
	var capa=parent.document.getElementById("infouser");
	doAjax2(capa,'scripts/identificacion.scr.php','','acceso','post',0);
}

function cargaOpAdmin(direccion){ 
	cargaOpAdmin_("<div align=left><img src='images/loading.gif'></div>");	
	doAjax3(direccion,'', 'cargaOpAdmin_', 'get' , 0);
}

function cargaOpAdmin_(html){ 
	parent.document.getElementById('panel2').innerHTML=html;	
}