// VALIDACION del envio de formularios

// Abril 2001, David Hern�ndez Sanz
// http://www.terra.es/personal3/davidhdezsanz/
// Validacion de distintos tipos de campos de formulario:
// - Texto no nulo
// - Direccion de correo electronico (e-mail): alfanum@alfanum.alfanum[.alfanum], donde alfanum son caracteres alfanumericos u otros (pasados como parametro)
// - Direccion en Internet (URL)
// Para ello no se utilizan expresiones regulares.
//
// El C�digo: www.elcodigo.com

/* dice si cadena es texto no vacio o no                                     */
function vacio(cadena)
  {                                    // DECLARACION DE CONSTANTES
    var blanco = " \n\t" + String.fromCharCode(13); // blancos
                                       // DECLARACION DE VARIABLES
    var i;                             // indice en cadena
    var es_vacio;                      // cadena es vacio o no
    for(i = 0, es_vacio = true; (i < cadena.length) && es_vacio; i++) // INICIO
      es_vacio = blanco.indexOf(cadena.charAt(i)) != - 1;
    return(es_vacio);
  }


/* dice si cadena es un email (alfanum@alfanum.alfanum[.alfanum]) o no, don- */
/* de alfanum son caracteres alfanumericos u otros                           */
function email(cadena, otros)
  {                                    // DECLARACION-INICIALIZACION VARIABLES
    var i, j;                          // indice en cadena
    var es_email = 0 < cadena.length;  // cadena es email o no
    i = salta_alfanumerico(cadena, 0, otros); // INICIO
    if(es_email = 0 < i)               // lee "alfanum*"
      if(es_email = (i < cadena.length))
        if(es_email = cadena.charAt(i) == '@') // lee "alfanum@*"
          {
            i++;
            j = salta_alfanumerico(cadena, i, otros);
            if(es_email = i < j)       // lee "alfanum@alfanum*"
              if(es_email = j < cadena.length)
                if(es_email = cadena.charAt(j) == '\.')
                  {                    // lee "alfanum@alfanum.*"
                    j++;
                    i = salta_alfanumerico(cadena, j, otros);
                    if(es_email = j < i) // lee "alfanum@alfanum.alfanum*"
                      while(es_email && (i < cadena.length))
                        if(es_email = cadena.charAt(i) == '\.')
                          {
                            i++;
                            j = salta_alfanumerico(cadena, i, otros);
                            if(es_email = i < j) // lee "alfanum@alfanum.alfanum[.alfanum]*"
                              i = j;
                          }
                  }
          }
    return(es_email);
  }


/* dice si cadena es url (http://... ) o no                                     */
function url(cadena)
  {                                    // DECLARACION DE CONSTANTES
    var http = "http://";              // protocolo HTTP
                                       // DECLARACION DE VARIABLES
    var es_url;                        // cadena es url o no
    if(cadena.length <= 7)             // INICIO
      es_url = false;                  // no cabe "http://*"
    else
      es_url = http.indexOf(cadena.substring(0, 7)) != - 1; // lee "http://*"
    return(es_url);
  }


/* salta caracteres alfanumericos y otros a partir de cadena[i] y da siguiente posicion */
function salta_alfanumerico(cadena, i, otros)
  {                                    // DECLARACION DE VARIABLES
    var j;                             // indice en cadena
    var car;                           // caracter de cadena
    var alfanum;                       // cadena[j] es alfanumerico u otros
    for(j = i, alfanum = true; (j < cadena.length) && alfanum; j++) // INICIO
      {
        car = cadena.charAt(j);
        alfanum = alfanumerico(car) || (otros.indexOf(car) != -1);
      }
    if(!alfanum)                       // lee "alfanumX"
      j--;
    return(j);
  }
  
/* dice si car es alfanumerico                                               */
function alfanumerico(car)
  {
    return(alfabetico(car) || numerico(car));
  }


/* dice si car es alfabetico                                                 */
function alfabetico(car)               // DECLARACION DE CONSTANTES
  {                                    // caracteres alfabeticos
    var alfa = "ABCDEFGHIJKLMNOPQRSTUWXYZabcdefghijklmnopqrstuvwxyz";
    return(alfa.indexOf(car) != - 1);  // INICIO
  }


/* dice si car es numerico                                                   */
function numerico(car)
  {                                    // DECLARACION DE CONSTANTES
    var num = "0123456789";            // caracteres numericos
    return(num.indexOf(car) != - 1);   // INICIO
  }


// ejemplo validacion formulario
function ValidaCampos(form)
  {
    if(vacio(form.apellido.value))
      	alert("Debe ingresar su Apellido.");
    else if(vacio(form.nombre.value))
			alert("Debe ingresar sus Nombres.");
    else if(vacio(form.domicilio.value))
			alert("Debe ingresar su Domicilio.");
    else if(vacio(form.localidad.value))
			alert("Debe ingresar la Localidad.");
    else if(vacio(form.provincia.value))
			alert("Debe ingresar la Provincia.");
    else if(vacio(form.telefono.value))
			alert("Debe ingresar su Telefono.");
    else if(!email(form.email.value, "-_"))
	      	alert("Debe ingresar su Direcci�n de correo electr�nico.");
	else if(!email(form.confirma.value, "-_"))
	     	alert("Debe ingresar la Confirmaci�n de correo electr�nico.");
	else if(form.email.value != form.confirma.value)
	    	alert("La direcci�n de email y su repeticion NO son iguales.");
	else
	  //sustituir esta linea por return(true) para hacer el submit de un formulario real
	return(true);
      //alert("Los datos son correctos");
 	return(false);
  }


// TERMINA la validacion del envio de formularios





//Mostrar y Ocultar capas
function mostrar(nombreCapa){ 
document.getElementById(nombreCapa).style.visibility="visible"; 
document.getElementById(nombreCapa).style.display="block"; 
} 
function ocultar(nombreCapa){ 
document.getElementById(nombreCapa).style.visibility="hidden"; 
document.getElementById(nombreCapa).style.display="none"; 
} 


/*este es el scroll de news*/

/**********************************************************************************   
NewsSlideFade 
*   Copyright (C) 2001 <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a>
*   This script was released at DHTMLCentral.com
*   Visit for more great scripts!
*   This may be used and changed freely as long as this msg is intact!
*   We will also appreciate any links you could give us.
*
*   Made by <a href="/dhtmlcentral/thomas_brattli.asp">Thomas Brattli</a> 
*********************************************************************************/

function lib_bwcheck(){ //Browsercheck (needed)
	this.ver=navigator.appVersion
	this.agent=navigator.userAgent
	this.dom=document.getElementById?1:0
	this.opera5=this.agent.indexOf("Opera 5")>-1
	this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0; 
	this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
	this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
	this.ie=this.ie4||this.ie5||this.ie6
	this.mac=this.agent.indexOf("Mac")>-1
	this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0; 
	this.ns4=(document.layers && !this.dom)?1:0;
	this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
	return this
}
var bw=new lib_bwcheck()


/***************************************************************************
Use the style tag to change the placement and width of the layers.
If you are trying to place this into a table cell or something make the
position of the divNewsCont layer relative...Remeber that that might crash
Netscape 4 though, Good luck!
********************************************************************************/

/****
Variables to set 
****/

//How do you want the script to work? 
//0 = Fade in - Fade out
//1 = Slide in - Fade out
//2 = Random 
nWorks = 0

//If you use the slide set these variables:
nSlidespeed = 3 //in px VELOCIDAD
nNewsheight = 150 //This is how long down it should start the slide.

nBetweendelay = 5000 //The delay before fading out.
nFont = 'verdana,arial,helvetiva' //The font for the news.
nFontsize = 11 //Font size in pixel.
nFadespeed = 100 //The speed to fade in, in milliseconds.

//Set the colors, first color is same as background, last color is the color it stops at:
//You can have as many colors you want
nColor=new Array('#FFFFFF', '#EEEEEE','#CCCCCC','#999999','#666666','#333333')

//This is the news you wanna have, set the link and the text. If you don't wan't it to link anywhere
//use a # as the link
nNews=new Array()
//Copy there three lines and change the info and numbers to get more news.
nNews[0]=new Array()
nNews[0]["text"]="<br><img style='float:right;border:0;' src='imagen/dvd-tenis.jpg'><b>Adquiri el DVD:</b> desarrollado sobre ejercitaciones y t&eacute;cnicas usadas en la preparaci&oacute;n f&iacute;sica espec&iacute;fica del tenis. M&aacute;s..."
nNews[0]["link"]="?modo=sale"

nNews[1]=new Array()
nNews[1]["text"]="<br><img style='float:right;border:0;width:75px;height:75px;' src='imagen/pro_m_mochila.jpg'><b>Productos Biodeport:</b> Ya pod&eacute;s adquirir los productos Biodeport directamente desde nuestro sitio. M&aacute;s..."
nNews[1]["link"]="?modo=salep"

nNews[2]=new Array()
nNews[2]["text"]="<br><img style='float:right;border:0;width:75px;height:75px;' src='imagen/pro_m_maletin.jpg'><b>Productos Biodeport:</b> Ya pod&eacute;s adquirir los productos Biodeport directamente desde nuestro sitio. M&aacute;s..."
nNews[2]["link"]="?modo=salep"

nNews[3]=new Array()
nNews[3]["text"]="<br><img style='float:right;border:0;width:75px;height:75px;' src='imagen/pro_m_paraguas.jpg'><b>Productos Biodeport:</b> Ya pod&eacute;s adquirir los productos Biodeport directamente desde nuestro sitio. M&aacute;s..."
nNews[3]["link"]="?modo=salep"

nNews[4]=new Array()
nNews[4]["text"]="<br><img style='float:right;border:0;width:75px;height:75px;' src='imagen/pro_m_amplitud.jpg'><b>Adquiri el Libro:</b> AMPLITUD DE MOVIMIENTO de Mario DI SANTO. M&aacute;s..."
nNews[4]["link"]="?modo=salep"

/********************************************************************************
Object code...Object constructors and functions...
********************************************************************************/
function makeNewsObj(obj,nest,font,size,color,news,fadespeed,betweendelay,slidespeed,works,newsheight){
    nest=(!nest) ? "":'document.'+nest+'.'
   	this.css=bw.dom? document.getElementById(obj).style:bw.ie4?document.all[obj].style:bw.ns4?eval(nest+"document.layers." +obj):0;	
   	this.writeref=bw.dom? document.getElementById(obj):bw.ie4?document.all[obj]:bw.ns4?eval(nest+"document.layers." +obj+".document"):0;
	if(font){this.color=new Array(); this.color=eval(color); this.news=new Array(); this.news=eval(news)
		this.font=font; this.size=size; this.speed=fadespeed; this.delay=betweendelay; this.newsheight=newsheight;
		this.fadeIn=b_fadeIn;this.fadeOut=b_fadeOut; this.newsWrite=b_newsWrite; this.y=1
		this.slideIn=b_slideIn; this.moveIt=b_moveIt; this.slideSpeed=slidespeed; this.works=works
		if(bw.dom || bw.ie4){this.css.fontFamily=this.font; this.css.fontSize=this.size; this.css.color=this.color[0]}
	}
	this.obj = obj + "Object"; 	eval(this.obj + "=this"); return this
}

// A unit of measure that will be added when setting the position of a layer.
var px = bw.ns4||window.opera?"":"px";

function b_moveIt(x,y){this.x=x; this.y=y; this.css.left=this.x+px; this.css.top=this.y+px;}

function b_newsWrite(num,i){
	if (bw.ns4){
		this.writeref.write("<a href=\""+this.news[num]['link']+"\" target=\"myTarget\" style=\"text-decoration:none; font-size:"+this.size+"px\">"
			+"<font face=\""+this.font+"\" color=\""+this.color[i]+"\">"+this.news[num]['text']+"</font></a>")
		this.writeref.close()
	}else this.writeref.innerHTML = '<a id="'+this.obj+'link' +'" target="myTarget"  style="text-decoration:none; font-size:'+this.size+'px; color:'+this.color[i]+'" href="'+this.news[num]['link']+'">'+this.news[num]['text']+'</a>'
}
//Slide in
function b_slideIn(num,i){
	if (this.y>0){
		if (i==0){this.moveIt(0,this.newsheight); this.newsWrite(num,this.color.length-1)}
		this.moveIt(this.x,this.y-this.slideSpeed)
		i ++
		setTimeout(this.obj+".slideIn("+num+","+i+");",50)
	}else setTimeout(this.obj+".fadeOut("+num+","+(this.color.length-1)+")",this.delay)
}
//The fade functions
function b_fadeIn(num,i){
	if (i<this.color.length){
		if (i==0 || bw.ns4) this.newsWrite(num,i)
		else{
			obj = bw.ie4?eval(this.obj+"link"):document.getElementById(this.obj+"link")
			obj.style.color = this.color[i]
		}
		i ++
		setTimeout(this.obj+".fadeIn("+num+","+i+")",this.speed)
	}else setTimeout(this.obj+".fadeOut("+num+","+(this.color.length-1)+")",this.delay)
}

function b_fadeOut(num,i){
	if (i>=0){
		if (i==0 || bw.ns4) this.newsWrite(num,i)	
		else{
			obj = bw.ie4?eval(this.obj+"link"):document.getElementById(this.obj+"link")
			obj.style.color = this.color[i]
		}
		i --
		setTimeout(this.obj+".fadeOut("+num+","+i+")",this.speed)
	}else{
		num ++
		if(num==this.news.length) num=0
		works = !this.works?0:this.works==1?1:Math.round(Math.random())
		if(works==0) setTimeout(this.obj+".fadeIn("+num+",0)",500)
		else if (works==1){this.y=1; setTimeout(this.obj+".slideIn("+num+",0)",500)
		}
	}
}
/********************************************************************************************
The init function. Calls the object constructor and set some properties and starts the fade
*********************************************************************************************/
function fadeInit(){
	oNews = new makeNewsObj('divNews','divNewsCont',nFont,nFontsize,"nColor","nNews",nFadespeed,nBetweendelay,nSlidespeed,nWorks,nNewsheight)
	oNewsCont = new makeNewsObj('divNewsCont')
	works = !oNews.works?0:oNews.works==1?1:Math.round(Math.random())
	if (works==0) oNews.fadeIn(0,0)
	else if (works==1) oNews.slideIn(0,0)
	oNewsCont.css.visibility = "visible"
}

//Calls the init function on pageload. 
if(bw.bw) onload = fadeInit

/*aca termina el scroll de news*/

