/*

Selector de provincias y localidades Ajax - non intrusive - Cross browser 

Copyright (C)Iñaki Gorostiza Esquerdeiro

Copyright (C)Andrés Reyes Torres, modificaciones.

http://www.hellogoogle.com

webmaster@hellogoogle.com 

This program is free software; you can redistribute it and/or

modify it under the terms of the GNU General Public License

as published by the Free Software Foundation; either version 2

of the License, or any later version.



This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.



You should have received a copy of the GNU General Public License

along with this program; if not, write to the Free Software

Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

*/



var XmlHttpObj;



/* ************************************* */

/* Funciones para comunes                */

/* ************************************* */

/* ************************************* */                                           

var Utf8 = {



    //Convierte de UTF-8 a ISO

    decode : function (utftext) {

        var string = "";

        var i = 0;

        var c = c1 = c2 = 0;



        while ( i < utftext.length ) {



            c = utftext.charCodeAt(i);



            if (c < 128) {

                string += String.fromCharCode(c);

                i++;

            }

            else if((c > 191) && (c < 224)) {

                c2 = utftext.charCodeAt(i+1);

                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));

                i += 2;

            }

            else {

                c2 = utftext.charCodeAt(i+1);

                c3 = utftext.charCodeAt(i+2);

                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));

                i += 3;

            }



        }



        return string;

    }



}

/* ************************************* */

function CreateXmlHttpObj()

{

	try

	{

		XmlHttpObj = new ActiveXObject("Msxml2.XMLHTTP");

	

	}

	catch(e)

	{

		try

		{

			XmlHttpObj = new ActiveXObject("Microsoft.XMLHTTP");

		} 

		catch(oc)

		{

			XmlHttpObj = null;

		}

	}

		if(!XmlHttpObj && typeof XMLHttpRequest != "undefined") 

	{

		XmlHttpObj = new XMLHttpRequest();

	}

}

/* ************************************* */

function GetInnerText (node)

{

     return (node.textContent || node.innerText || node.text) ;

}



/* ************************************* */

/* Funciones para Provincias             */

/* ************************************* */



function provinciaListOnChange() {

    var to=document.getElementById("advice");

    to.innerHTML="<img src='ajax/loading.gif' align='absmiddle'>";

    var provinciaList = document.getElementById("provinciaList");
    

    var selectedprovincia = provinciaList.options[provinciaList.selectedIndex].value;

    var requestUrl;



     requestUrl = "ajax/xml_data_provider.php" + "?filter=" + encodeURIComponent(selectedprovincia);

    

	CreateXmlHttpObj();

	

	if(XmlHttpObj)

	{

	

		XmlHttpObj.onreadystatechange = StateChangeHandler;

		XmlHttpObj.open( "POST", requestUrl, true );

		XmlHttpObj.setRequestHeader("Content-Type","application/x-www-form-urlencoded");

		XmlHttpObj.send('');		

	}

}

/* ************************************* */

function provinciaList_2OnChange() {

    var to=document.getElementById("advice_2");

    to.innerHTML="<img src='ajax/loading.gif' align='absmiddle'>";

    var provinciaList = document.getElementById("provinciaList_2");

    

    var selectedprovincia = provinciaList.options[provinciaList.selectedIndex].value;

    var requestUrl;



    requestUrl = "ajax/xml_data_provider.php" + "?filter=" + encodeURIComponent(selectedprovincia);

    

    CreateXmlHttpObj();

    

    if(XmlHttpObj)

    {

    

        XmlHttpObj.onreadystatechange = StateChangeHandler_2;

        XmlHttpObj.open( "POST", requestUrl, true );

        XmlHttpObj.setRequestHeader("Content-Type","application/x-www-form-urlencoded");

        XmlHttpObj.send('');        

    }

}

/* ************************************* */

function StateChangeHandler()

{

	if(XmlHttpObj.readyState == 4)

	{

		if(XmlHttpObj.status == 200)

		{			

			PopulatelocalidadList(XmlHttpObj.responseXML.documentElement);

		}

		else

		{

			alert("Código de error: "  + XmlHttpObj.status);

		}

	}

}

/* ************************************* */

function StateChangeHandler_2()

{

    if(XmlHttpObj.readyState == 4)

    {

        if(XmlHttpObj.status == 200)

        {            

            PopulatelocalidadList_2(XmlHttpObj.responseXML.documentElement);

        }

        else

        {

            alert("Código de error: "  + XmlHttpObj.status);

        }

    }

}

/* ************************************* */

function PopulatelocalidadList(localidadNode)

{	

    var localidadList = document.getElementById("localidadList");

	for (var count = localidadList.options.length-1; count >-1; count--)

	{

		localidadList.options[count] = null;

	}



	var localidadNodes = localidadNode.getElementsByTagName('localidad');

	var textValue; 

    //var txtCodigo;

	var optionItem;

	for (var count = 0; count < localidadNodes.length; count++)

	{ 

        textValue = Utf8.decode(GetInnerText(localidadNodes[count]));

        // Para recoger además, el atributo c, que es el código de localidad.

        //txtCodigo = Utf8.decode(localidadNodes[count].attributes.getNamedItem('c').value);

		idValue=count;		

		//optionItem = new Option( textValue, txtCodigo,  false, false);

        optionItem = new Option( textValue, textValue,  false, false);

		localidadList.options[localidadList.length] = optionItem;

	}

    var to=document.getElementById("advice");

    to.innerHTML="";

}

/* ************************************* */

function PopulatelocalidadList_2(localidadNode)

{    

    var localidadList = document.getElementById("localidadList_2");

    for (var count = localidadList.options.length-1; count >-1; count--)

    {

        localidadList.options[count] = null;

    }



    var localidadNodes = localidadNode.getElementsByTagName('localidad');

    var textValue; 

    //var txtCodigo;

    var optionItem;

    for (var count = 0; count < localidadNodes.length; count++)

    { 

        textValue = Utf8.decode(GetInnerText(localidadNodes[count]));

        //txtCodigo = Utf8.decode(localidadNodes[count].attributes.getNamedItem('c').value);

        idValue=count;        

        //optionItem = new Option( textValue, txtCodigo,  false, false);

        optionItem = new Option( textValue, textValue,  false, false);

        localidadList.options[localidadList.length] = optionItem;

    }

    var to=document.getElementById("advice_2");

    to.innerHTML="";

}



/* *************************************** */

/* Código para la segunda página del CV: Titulaciones, Ramas, etc. */

/* *************************************** */

/* *************************************** */

// Handler para el combobox de titulaciones

function titulacion_ListOnChange() {

    var to=document.getElementById("advice_especialidad");

    to.innerHTML="<img src='ajax/loading.gif' align='absmiddle'>";

    var titulacionList = document.getElementById("titulacionList");

    

    var selectedtitulacion = titulacionList.options[titulacionList.selectedIndex].value;

    var requestUrl;



     requestUrl = "ajax/xml_data_titulacion_rama.php" + "?filter=" + encodeURIComponent(selectedtitulacion);

    

    CreateXmlHttpObj();

    

    if(XmlHttpObj)

    {

    

        XmlHttpObj.onreadystatechange = titulacion_StateChangeHandler;

        XmlHttpObj.open( "POST", requestUrl, true );

        XmlHttpObj.setRequestHeader("Content-Type","application/x-www-form-urlencoded");

        XmlHttpObj.send('');        

    }

}

/* *************************************** */

// Handler para el estado de las titulaciones

function titulacion_StateChangeHandler()

{

    if(XmlHttpObj.readyState == 4)

    {

        if(XmlHttpObj.status == 200)

        {            

            titulacion_PopulateList(XmlHttpObj.responseXML.documentElement);

        }

        else

        {

            alert("Código de error: "  + XmlHttpObj.status);

        }

    }

}

/* *************************************** */                                             

// Para rellenar el combo dependiente

function titulacion_PopulateList(titulacionNode)

{    

    var especialidadList = document.getElementById("especialidadList");

    for (var count = especialidadList.options.length-1; count >-1; count--)

    {

        especialidadList.options[count] = null;

    }



    var especialidadNodes = titulacionNode.getElementsByTagName('rama');

    var textValue; 

    //r txtCodigo;

    var optionItem;

    for (var count = 0; count < especialidadNodes.length; count++)

    { 

        textValue = Utf8.decode(GetInnerText(especialidadNodes[count]));

        //txtCodigo = Utf8.decode(especialidadNodes[count].attributes.getNamedItem('c').value);

        idValue=count;        

        //optionItem = new Option( textValue, txtCodigo,  false, false);

        optionItem = new Option( textValue, textValue,  false, false);

        especialidadList.options[especialidadList.length] = optionItem;

    }

    var to=document.getElementById("advice_especialidad");

    to.innerHTML="";

}

/* *************************************** */