function nuevoAjax(){
	var xmlhttp=false;
 	try {
 		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
 	} catch (e) {
 		try {
 			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
 		} catch (E) {
 			xmlhttp = false;
 		}
  	}

	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
 		xmlhttp = new XMLHttpRequest();
	}
	return xmlhttp;
}

function opina() {
	t1 = escape(document.getElementById('comment').value);
	t2 = new String(document.getElementById('puntuacion').value);
	t3 = new String(document.getElementById('pLomejor').value);
	t4 = new String(document.getElementById('pLopeor').value);
	t5 = new String(document.getElementById('cod_item').value);

	if((t1 == "") || (t1.length < 5) || (t1.length > 255)) {
		alert('Debes de incluir un comentario correcto');
	} else {
		document.getElementById('comentar').innerHTML = '<p align="center"><br /><br /><br /><br /><br /><br /><br /><br /><img src=\"../../../img/cargando.gif\" alt=\"Cargando\" /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></p>';
		ajax = nuevoAjax();
		ajax.open("POST", "/revistas/inserta/", true);
		ajax.onreadystatechange = function() {
			if (ajax.readyState == 4) {
				document.getElementById('comentar').innerHTML = ajax.responseText;
			}
		}
		ajax.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		ajax.send("comentario="+t1+"&puntuacion="+t2+"&lomejor="+t3+"&lopeor="+t4+"&cod_item="+t5);
		document.getElementById('comentarios').innerHTML = '<p align="center"><br /><br /><br /><br /><br /><br /><br /><br /><img src=\"../../../img/cargando.gif\" alt=\"Cargando\" /><br /><br /><br /><br /><br /><br /><br /><br /><br /><br /></p>';
		ajax2 = nuevoAjax();
		ajax2.open("POST", "/revistas/com/", true);
		ajax2.onreadystatechange = function() {
			if (ajax2.readyState == 4) {
				document.getElementById('comentarios').innerHTML = ajax2.responseText;
			}
		}
		ajax2.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		ajax2.send("cod_item="+t5);
	}
}

function previsualizar(from, to) {
	var NewText = document.getElementById(from).value;
	splitText = NewText.split(/\n/).join("<br />");
	var DivElement = document.getElementById(to);
	DivElement.innerHTML = splitText;
}

function opinion() {
	var frmEl = document.getElementById('comentar');
	addEvent(frmEl, 'submit', opina, false);
	frmEl.onsubmit = function() { return false; }
}

addEvent(window, 'load', opinion, false);