// JavaScript Document

function addEvent(obj, evType, fn){ 
 if (obj.addEventListener){ 
   obj.addEventListener(evType, fn, false); 
   return true; 
 } else if (obj.attachEvent){ 
   var r = obj.attachEvent("on"+evType, fn); 
   return r; 
 } else { 
   return false; 
 } 
}


function reemplazar_campos_login(){
	var div_usuarios = document.getElementById("usuarios");
	if (div_usuarios){
		var campos = div_usuarios.getElementsByTagName("input");
		var tipo;
		for (var i = 0; i<campos.length; i++){
			tipo = campos[i].getAttribute("type")
			if(tipo == "text" || tipo == "password" ){
				campos[i].onfocus = function(){
					envoid(this);
				}
				campos[i].onblur = function(){
					novoid(this);
				}
			}
		}
	}
}

function envoid(campo){
	if(campo.value == campo.defaultValue){
		campo.value="";
	}
}

function novoid(campo){
	if(campo.value == ""){
		campo.value=campo.defaultValue;
	}
}

/*
	Developed by Robert Nyman, http://www.robertnyman.com
	Code/licensing: http://code.google.com/p/getelementsbyclassname/
*/
var getElementsByClassName = function (className, tag, elm){
	if (document.getElementsByClassName) {
		getElementsByClassName = function (className, tag, elm) {
			elm = elm || document;
			var elements = elm.getElementsByClassName(className),
				nodeName = (tag)? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
			for(var i=0, il=elements.length; i<il; i+=1){
				current = elements[i];
				if(!nodeName || nodeName.test(current.nodeName)) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	else if (document.evaluate) {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace)? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
			for(var j=0, jl=classes.length; j<jl; j+=1){
				classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
			}
			try	{
				elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
			}
			catch (e) {
				elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
			}
			while ((node = elements.iterateNext())) {
				returnElements.push(node);
			}
			return returnElements;
		};
	}
	else {
		getElementsByClassName = function (className, tag, elm) {
			tag = tag || "*";
			elm = elm || document;
			var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all)? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
			for(var k=0, kl=classes.length; k<kl; k+=1){
				classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
			}
			for(var l=0, ll=elements.length; l<ll; l+=1){
				current = elements[l];
				match = false;
				for(var m=0, ml=classesToCheck.length; m<ml; m+=1){
					match = classesToCheck[m].test(current.className);
					if (!match) {
						break;
					}
				}
				if (match) {
					returnElements.push(current);
				}
			}
			return returnElements;
		};
	}
	return getElementsByClassName(className, tag, elm);
}

addEvent(window, 'load', reemplazar_campos_login);

function mensajeAyuda(capa){
		
		mensajeReplegar(capa);

		capa.find(".tituloadvertencia > a").toggle(
		function(){
			mensajeDesplegar(capa);
		},
		function(){
			mensajeReplegar(capa);
		}
	)
}

function mensajeDesplegar(capa){
	var contenidoadvertencia = capa.find(".contenidoadvertencia");
	contenidoadvertencia.slideDown("fast");
	var img = capa.find(".tituloadvertencia > a > img");
	img.attr("src", "images/flechaa.gif");
	img.attr("alt", "");
	return false;
	
}

function mensajeReplegar(capa){
	var contenidoadvertencia = capa.find(".contenidoadvertencia");
	contenidoadvertencia.slideUp("fast");
	var img = capa.find(".tituloadvertencia > a > img");
	img.attr("src", "images/flechad.gif");
	img.attr("alt", "");
	return false;
}

function reemplazarVideos(){
	if (isset('$') && $("a.video").is("a")){
		var enlaces = $("a.video");
		enlaces.each(function(){
			var enlace = $(this);
			var url = enlace.attr("href");
			var dimensiones = enlace.attr("title").toLowerCase().split("x");
			enlace.replaceWith('<iframe src="'+url+'" width="'+dimensiones[0]+'" height="'+dimensiones[1]+'" frameborder="0"><a href="'+url+'" target="_blank">'+enlace.text()+'</a></iframe>');
		});
	}
}

function isset(variable_name) {
    try {
         if (typeof(eval(variable_name)) != 'undefined')
         if (eval(variable_name) != null)
         return true;
     } catch(e) { }
    return false;
   }


addEvent(window, 'load', reemplazarVideos);

UTF8 = {
    encode: function(s){
        for(var c, i = -1, l = (s = s.split("")).length, o = String.fromCharCode; ++i < l;
            s[i] = (c = s[i].charCodeAt(0)) >= 127 ? o(0xc0 | (c >>> 6)) + o(0x80 | (c & 0x3f)) : s[i]
        );
        return s.join("");
    },
    decode: function(s){
        for(var a, b, i = -1, l = (s = s.split("")).length, o = String.fromCharCode, c = "charCodeAt"; ++i < l;
            ((a = s[i][c](0)) & 0x80) &&
            (s[i] = (a & 0xfc) == 0xc0 && ((b = s[i + 1][c](0)) & 0xc0) == 0x80 ?
            o(((a & 0x03) << 6) + (b & 0x3f)) : o(128), s[++i] = "")
        );
        return s.join("");
    }
};


function validarNombre(campo, valordefecto){
     var cadena = "abcdefghijklmnñopqrstuvwxyzáéíóúàèìòùüçZ1234567890' ";
     var valor = campo.val();

     var ok = validarCadena(valor, cadena);

     if (campo.val().length<3 || valor==valordefecto || !ok){
         ok = false;
         marcarCampo(campo, false);
     }else{
         ok = true;
         marcarCampo(campo, true);
     }

     if (ok){
        return 0;
     }else{
         return 1;
     }
}

function validarEmail(campo, comparacion, comprobar){
     var cadena = "abcdefghijklmnopqrstuvwxyz1234567890@._-";
     var obligatorios = "@.";
     var valor = campo.val();

     var ok = validarCadena(valor, cadena, obligatorios);

     if (comparacion){
        if (valor != comparacion.val()){
            ok = false;
        }
     }


     if (campo.val().length<3 || !ok){
         marcarCampo(campo, false);
         return 1;
     }else{
         marcarCampo(campo, true);
         if (comprobar){
            comprobarEmail(campo);
         }
         return 0;
     }
}

function comprobarEmail(campo, callback){
 $.ajax({
    url:"existe_mail.php",
    data:"mail="+campo.val(),
    type: "GET",
        success: function(data){
            if(data == "1"){
                    alert(mensajeemail);
                    marcarCampo(campo, false);
            }else{
                if (callback){
                    callback();
                }
            }
        }
    });
}

function validarClave(campo, comparacion){
     var cadena = "abcdefghijklmnñopqrstuvwxyz1234567890";
     var valor = campo.val();

     var ok = validarCadena(valor, cadena);

     if (comparacion){
        if (campo.val() != comparacion.val()){
            ok = false;
        }
     }

     if (campo.val().length<3 || !ok){
         marcarCampo(campo, false);
         return 1;
     }else{
         marcarCampo(campo, true);
         return 0;
     }
}

function validarSelect(campo){
    if (campo.val()!='' && campo.val()!='0'){
         marcarCampo(campo, true);
         return 0;
    }else{
         marcarCampo(campo, false);
         return 1;
    }
}

function validarCadena(valor, cadena, obligatorios){
    var ok = true;
    var ok2, cont2;
    cadena = UTF8.decode(cadena);
    valor = valor.toLowerCase();
    for (var contador = 0 ; contador < valor.length ; contador++){
       ok2 = false;
       for (cont2 = 0; cont2 < cadena.length ; cont2++){
           if (valor[contador] == cadena[cont2]){
               ok2 = true;
               break;
               break;
           }
      }
      if (!ok2){
         ok = false;
      }
    }

    if (obligatorios){
        for (cont2 = 0; cont2 < obligatorios.length ; cont2++){
          if (valor.indexOf(obligatorios[cont2]) === -1){
             ok = false;
             break;
          }
        }
    }

    return ok;
}

function marcarCampo(campo, ok){
    if (ok){
        if (campo.hasClass("ko")){
            campo.removeClass("ko");
        }
        if (!campo.hasClass("ok")){
            campo.addClass("ok");
        }
    }else{
        if (campo.hasClass("ok")){
            campo.removeClass("ok");
        }
        if (!campo.hasClass("ko")){
           campo.addClass("ko");
        }
    }
}

/*function gAnalytics(){
	var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
	var cabeza = document.getElementsByTagName("head")[0];
	var scanalytics = document.createElement("script");
	scanalytics.setAttribute("type", "text/javascript")
	scanalytics.setAttribute("src", gaJsHost + "google-analytics.com/ga.js");
	scanalytics.onload = scanalytics.onreadystatechange = function(){
		try {
			var pageTracker = _gat._getTracker("UA-645895-9");
			pageTracker._initData();
			pageTracker._trackPageview();
		} catch(err) {
		}	
	}
	cabeza.appendChild(scanalytics);
}

addEvent(window, 'load', gAnalytics);*/

// JavaScript Document