validar = function(formulario) {
	$('nombre-error').hide();
	$('correo-error').hide();
	$('mensaje-error').hide();
	var formulario = document.forms[formulario];
	var error = false;
	if(formulario.nombre.value == "Tu Nombre" || formulario.nombre.value == "" || formulario.nombre.value == " ") {
		$('nombre-error').show();
		error = true;
	}
	if(formulario.mensaje.value == "Consulta" || formulario.mensaje.value == "" || formulario.mensaje.value == " ") {
		$('mensaje-error').show();
		error = true;
	}
	if (!iEmailAddress(formulario.correo.value)) { 
        error = true;
		$('correo-error').show();
    }
	
	if(!error) {
		new Ajax.Request('correo.php', {
            method: 'get',
            parameters: $(formulario).serialize(true),
            onSuccess: function(transport){
                var response = transport.responseText || "no response text";
                $('estado').innerHTML = response;
            },
            onFailure: function(){
                $('estado').innerHTML = "Error al enviar el correo intente nuevamente";
            }
        });
	}
	else {
		alert("Error al enviar el formulario, revisa los campos.");
	}
	
}

iEmailAddress = function(correo){
	var filter=/^[A-Za-z0-9_.][A-Za-z0-9_.]*@[A-Za-z0-9_]+\.[A-Za-z0-9_.]+[A-za-z]$/;
	if (correo.length == 0 ) return true;
	if (filter.test(correo))
		return true;
	else
		return false;
}

clearfield = function(inputfield){
	if (inputfield.defaultValue==inputfield.value)
	inputfield.value = "";
}


navmenu = function(elemento) {
	switch(elemento) {
		case "quienessomos":
			$('nav'+elemento).setStyle({background: '#ffffff url(img/iconos/quienessomos_2.png) no-repeat'});
			$('navservicios').setStyle({background:'#EAF2F5 url(img/iconos/servicios_1.png) no-repeat'});
			$('navplataforma').setStyle({background:'#EAF2F5 url(img/iconos/plataforma_1.png) no-repeat'});
			$('navcontactanos').setStyle({background:'#EAF2F5 url("img/iconos/contactanos_1.png") no-repeat'});
			break;
		case "servicios":
			$('navquienessomos').setStyle({background: '#EAF2F5 url(img/iconos/quienessomos_1.png) no-repeat'});
			$('navservicios').setStyle({background:'#FFFFFF url(img/iconos/servicios_2.png) no-repeat'});
			$('navplataforma').setStyle({background:'#EAF2F5 url(img/iconos/plataforma_1.png) no-repeat'});
			$('navcontactanos').setStyle({background:'#EAF2F5 url("img/iconos/contactanos_1.png") no-repeat'});
			break;
		case "plataforma":
			$('navquienessomos').setStyle({background: '#EAF2F5 url(img/iconos/quienessomos_1.png) no-repeat'});
			$('navservicios').setStyle({background:'#EAF2F5 url(img/iconos/servicios_1.png) no-repeat'});
			$('navplataforma').setStyle({background:'#ffffff url(img/iconos/plataforma_2.png) no-repeat'});
			$('navcontactanos').setStyle({background:'#EAF2F5 url("img/iconos/contactanos_1.png") no-repeat'});
			break;
		case "contactanos":
			$('navquienessomos').setStyle({background: '#EAF2F5 url(img/iconos/quienessomos_1.png) no-repeat'});
			$('navservicios').setStyle({background:'#EAF2F5 url(img/iconos/servicios_1.png) no-repeat'});
			$('navplataforma').setStyle({background:'#EAF2F5 url(img/iconos/plataforma_1.png) no-repeat'});
			$('navcontactanos').setStyle({background:'#ffffff url("img/iconos/contactanos_2.png") no-repeat'});
			break;
	}

}

/**
 * @author Bruno Bornsztein <bruno@missingmethod.com>
 * @copyright 2007 Curbly LLC
 * @package Glider
 * @license MIT
 * @url http://www.missingmethod.com/projects/glider/
 * @version 0.0.3
 * @dependencies prototype.js 1.5.1+, effects.js
 */

/*  Thanks to Andrew Dupont for refactoring help and code cleanup - http://andrewdupont.net/  */

Glider = Class.create();
Object.extend(Object.extend(Glider.prototype, Abstract.prototype), {
	initialize: function(wrapper, options){
	    this.scrolling  = false;
	    this.wrapper    = $(wrapper);
	    this.scroller   = this.wrapper.down('div.scroller');
	    this.sections   = this.wrapper.getElementsBySelector('div.section');
	    this.options    = Object.extend({ duration: 2.0, frequency: 3 }, options || {});

	    this.sections.each( function(section, index) {
	      section._index = index;
	    });    

	    this.events = {
	      click: this.click.bind(this)
	    };

	    this.addObservers();
			if(this.options.initialSection) this.moveTo(this.options.initialSection, this.scroller, { duration:this.options.duration });  // initialSection should be the id of the section you want to show up on load
			if(this.options.autoGlide) this.start();
	  },
	
  addObservers: function() {
    var controls = this.wrapper.getElementsBySelector('div.controls a');
    controls.invoke('observe', 'click', this.events.click);
  },	

  click: function(event) {
	this.stop();
    var element = Event.findElement(event, 'a');
	navmenu(element.href.split("#")[1]);
    if (this.scrolling) this.scrolling.cancel();
    
    this.moveTo(element.href.split("#")[1], this.scroller, { duration:this.options.duration });     
    Event.stop(event);
  },

	moveTo: function(element, container, options){
			this.current = $(element);

			Position.prepare();
	    var containerOffset = Position.cumulativeOffset(container),
	     elementOffset = Position.cumulativeOffset($(element));

		  this.scrolling 	= new Effect.SmoothScroll(container, 
				{duration:options.duration, x:(elementOffset[0]-containerOffset[0]), y:(elementOffset[1]-containerOffset[1])});
		  return false;
		},
		
  next: function(){
    if (this.current) {
      var currentIndex = this.current._index;
      var nextIndex = (this.sections.length - 1 == currentIndex) ? 0 : currentIndex + 1;      
    } else var nextIndex = 1;

    this.moveTo(this.sections[nextIndex], this.scroller, { 
      duration: this.options.duration
    });
  },
	
  previous: function(){
    if (this.current) {
      var currentIndex = this.current._index;
      var prevIndex = (currentIndex == 0) ? this.sections.length - 1 : 
       currentIndex - 1;
    } else var prevIndex = this.sections.length - 1;
    
    this.moveTo(this.sections[prevIndex], this.scroller, { 
      duration: this.options.duration
    });
  },

	stop: function()
	{
		clearTimeout(this.timer);
	},
	
	start: function()
	{
		this.periodicallyUpdate();
	},
		
	periodicallyUpdate: function()
	{ 
		if (this.timer != null) {
			clearTimeout(this.timer);
			this.next();
		}
		this.timer = setTimeout(this.periodicallyUpdate.bind(this), this.options.frequency*1000);
	}

});

Effect.SmoothScroll = Class.create();
Object.extend(Object.extend(Effect.SmoothScroll.prototype, Effect.Base.prototype), {
  initialize: function(element) {
    this.element = $(element);
    var options = Object.extend({
      x:    0,
      y:    0,
      mode: 'absolute'
    } , arguments[1] || {}  );
    this.start(options);
  },
  setup: function() {
    if (this.options.continuous && !this.element._ext ) {
      this.element.cleanWhitespace();
      this.element._ext=true;
      this.element.appendChild(this.element.firstChild);
    }
   
    this.originalLeft=this.element.scrollLeft;
    this.originalTop=this.element.scrollTop;
   
    if(this.options.mode == 'absolute') {
      this.options.x -= this.originalLeft;
      this.options.y -= this.originalTop;
    } 
  },
  update: function(position) {   
    this.element.scrollLeft = this.options.x * position + this.originalLeft;
    this.element.scrollTop  = this.options.y * position + this.originalTop;
  }
});