/* 
 * JAVASCRIPT FUNCOES BASICAS
 * Ojeto contendo as infomações do browser e plataforma
 */
var is = {
    ie:      navigator.appName.indexOf('Microsoft Internet Explorer') >= 0,
    java:    navigator.javaEnabled(),
    ns:      navigator.appName.indexOf('Netscape') >= 0,
    ua:      navigator.userAgent.toLowerCase(),
    version: parseFloat(navigator.appVersion.substr(21)) || parseFloat(navigator.appVersion),
    win:     navigator.platform.indexOf('Win32') >= 0,
    winCE:   navigator.platform.indexOf('Windows CE') >= 0
}
is.mac = is.ua.indexOf('mac') >= 0;
if (is.ua.indexOf('opera') >= 0) {
    is.ie = is.ns = false;
    is.opera = true;
}
if (is.ua.indexOf('gecko') >= 0) {
    is.ie = is.ns = false;
    is.gecko = true;
}

/* 
 * getElementIndex(input_object)
 * 
 * Pass an input object, returns index in form.elements[] for the object
 * 
 * Returns -1 if error
 * 
 */
function getElementIndex(obj) {
    var theform = obj.form;
    for (var i=0; i < theform.elements.length; i++) {
        if (obj.name == theform.elements[i].name) {
            return i;
        }
    }
    return -1;
}
//-------------------------------------------------------------------

// goto next filed if key <Enter> pressed

// tabNext(field, event)

//   Pass an form input object. Will focus() the next field in the form

//   after the passed element.

//   a) Will not focus to hidden or disabled fields

//   b) If end of form is reached, it will loop to beginning

//   c) If it loops through and reaches the original field again without

//      finding a valid field to focus, it stops

//  <input type="text" name="T2" onKeyDown="tabNext(this, event)">

// -------------------------------------------------------------------

// Author: Matt Kruse <matt@mattkruse.com>

// WWW: http://www.mattkruse.com/

// -------------------------------------------------------------------

function tabNext(field, event, idNextField) { 
    // idNextField (opcional)
    if ((event.which && event.which == 13) || (event.keyCode && event.keyCode == 13)) {
        if (navigator.platform.toUpperCase().indexOf("SUNOS") != -1) {
            obj.blur();
            return; // Sun's onFocus() is messed up
        }
        if(idNextField) {
            var nField = document.getElementById(idNextField);
            nField.focus();
            if(nField.type && nField.type != "select-one" && nField.type != "button")
                nField.select();
            return;
        }
        var theform = field.form;
        var i = getElementIndex(field);
        var j = i+1;
        if (i == -1) {
            return;
        }
        while (j != i) {
            if (j >= theform.elements.length){
                j = 0; 
            }
            if ((theform.elements[j].type!="hidden") && ( theform.elements[j].name != theform.elements[i].name) && (! theform.elements[j].disabled) && (theform.elements[j].tabIndex >= 0)) {
                if (theform.elements[j].type == "select-one") {
                    theform.elements[j].focus();
                } else if (theform.elements[j].type == "button") {
                    theform.elements[j].focus();
                } else {
                    theform.elements[j].focus();
                    theform.elements[j].select();
                }
                return false;
                break;
            }
            j++;
        }
    }
    return true;
}

function autoTab(element,destination){
    if (element.getAttribute && element.value.length == element.getAttribute("maxlength")) {
        if(destination) {
            var nField = document.getElementById(destination);
            nField.focus();
            if(nField.type && nField.type != "select-one" && nField.type != "button")
                nField.select();
            return;
        }
    }
        //destination.focus()
}



//-------------------------------------------------------------------

// isIEBrowser()

//   verifica se eh o browser MSIE

//   Returns boolean

//-------------------------------------------------------------------

function isIEBrowser(){

    if (navigator.appName.indexOf("Microsoft")!=-1) {

        return true;

    } else {

        return false;

    }

} 



//-------------------------------------------------------------------

// isFirefox()

//   verifica se eh o browser FireFox

//   Returns boolean

//-------------------------------------------------------------------

function isFirefox(){

    if (navigator.appName == "Netscape") {

        return true;

    } else {

        return false;

    }

} 



//-------------------------------------------------------------------

// isOpera()

//   verifica se eh o browser Opera

//   Returns boolean

//-------------------------------------------------------------------

function isOpera(){

    if (is.opera) {

        return true;

    } else {

        return false;

    }

} 



//-------------------------------------------------------------------

// isWinCE()

//   verifica se esta rodando o browser no windows ce

//   Returns boolean

//-------------------------------------------------------------------

function isWinCE(){

    if (is.winCE) {

        return true;

    } else {

        return false;

    }

} 



//-------------------------------------------------------------------

// getX()

//   busca a posicao X do elemento

//   Returns int

//-------------------------------------------------------------------

function getX(objName) {

    var curleft = 0;

    var obj = document.getElementById(objName);

    if (obj.offsetParent)

    {

        while (obj.offsetParent)

        {

            curleft += obj.offsetLeft

            obj = obj.offsetParent;

        }

    }

    else if (obj.x)

        curleft += obj.x;

    return curleft;

}



//-------------------------------------------------------------------

// getY()

//   busca a posicao Y do elemento

//   Returns int

//-------------------------------------------------------------------

function getY(objName) {

    var curtop = 0;

    var obj = document.getElementById(objName);

    if (obj.offsetParent)

    {

        while (obj.offsetParent)

        {

            curtop += obj.offsetTop

            obj = obj.offsetParent;

        }

    }

    else if (obj.y)

        curtop += obj.y;

    return curtop;

}



//-------------------------------------------------------------------

// getWindowHeight

//   busca a altura da janela

//   Return int

//-------------------------------------------------------------------

function getWindowHeight() {

    var result = 0;

    if (isFirefox()) {

        result = window.innerHeight-16;

    } else if (isIEBrowser()) {

        result = document.body.offsetHeight-20;

    }

    return result;

}



//-------------------------------------------------------------------

// getWindowWidth

//   busca a largura da janela

//   Return int

//-------------------------------------------------------------------

function getWindowWidth() {

    var result = 0;

    if (isFirefox()) {

        result = window.innerWidth-16;

    } else if (isIEBrowser()) {

        result = document.body.offsetWidth-20;

    }

    return result;

}





//-------------------------------------------------------------------

// getElementHeight(element)

//   retirna a altura de um elemento

//-------------------------------------------------------------------

function getElementHeight(Elem) {

    var elem;

    if (document.getElementById) {

        elem = document.getElementById(Elem);

    } else if (document.all){

        elem = document.all[Elem];

    }

    return elem.offsetHeight; 

}



//-------------------------------------------------------------------

// getElementWidth(element)

//   retirna a altura de um elemento

//-------------------------------------------------------------------

function getElementWidth(Elem) {

    if(document.getElementById) {

        var elem = document.getElementById(Elem);

    } else if (document.all){

        var elem = document.all[Elem];

    }

    return elem.offsetWidth; 

}



//-------------------------------------------------------------------

// escaspe(key_event)

//   verifica se o usuario precionou o ESC para fechar a tela

//-------------------------------------------------------------------

function escape(event){

    if ((event.which && event.which == 27)

        ||  (event.keyCode && event.keyCode == 27)) {

        window.close();

    }

    return;

}



//-------------------------------------------------------------------

// isescape(key_event)

//   verifica se o usuario precionou o ESC

//-------------------------------------------------------------------

function isescape(event){

    if ((event.which && event.which == 27)

        ||  (event.keyCode && event.keyCode == 27)) {

        return true;

    }

    return false;

}



//-------------------------------------------------------------------

// round(number, decimal)

//   faz o round com n casas decimais

// number valor a ser aredondado

// decimal n de casas decimais

//-------------------------------------------------------------------

function round(number, decimal) {

    var newnumber = Math.round(number*Math.pow(10,decimal))/Math.pow(10,decimal);

    return newnumber;

}



//-------------------------------------------------------------------

// trunc(number, decimal)

//   faz o trunc com n casas decimais

// number valor a ser truncado

// decimal n de casas decimais

//-------------------------------------------------------------------

function trunc(number, decimal) {

    var newNumber =  Math.floor(number*Math.pow(10,decimal))/Math.pow(10,decimal);

    return newNumber;

}



//-------------------------------------------------------------------

// Parsea a data

// @param String com data no formato ##/##/####

//-------------------------------------------------------------------

function parseDate(data){

    var result = true;

    if (data) {

        var elems = data.split("/");

        if (elems.length == 3)	{

            var day = elems[0];

            var month = elems[1];

            var year = elems[2];

			

            result = ! isNaN(elems[0]) && (month > 0) && (month < 13) &&

            ! isNaN(elems[1]) && (day > 0) && (day < 32) &&

            ! isNaN(elems[2]) && ((elems[2].length == 2) || (elems[2].length == 4));



            if (! result) {

                alert('Formato da data invalido! '+day+'/'+month+'/'+year);

            }

            var data = new Date();

            data.setYear(year);

            data.setMonth(month -1);

            data.setDate(day);

            return data;

        } else {

            alert('Formato da data valido!');

        }

    } else return new Date();

}



//-------------------------------------------------------------------

// Intercepta a tecla e nao deixa retornar ao form

// @param key-event

//-------------------------------------------------------------------

function interceptkey(event) {

    if (event) {

        if (isIEBrowser()){

            event = window.event; // for IE

            event.keyCode = 0;

            event.returnValue = false;					

        }

    }

    return false;

}



// Funcoes de janelas

var index = 0;

var winModal;

//-------------------------------------------------------------------

// Mostra uma janela

//-------------------------------------------------------------------

function showModalWindow(titulo, x, y, w, h, showEffect, hideEffect) {

    winModal = new Window('modal'+index, {
        title: titulo,

        left: parseInt(x),

        top: parseInt(y),

        width:  parseInt(w), 

        height:  parseInt(h),

        resizable: true, 

        showEffect: showEffect,

        hideEffect: hideEffect
    });

}



function doCloseModal() {

    if (winModal) {

        Windows.close(winModal.getId());

    }

}



//-------------------------------------------------------------------

// Mostra a janela "Processando..."

//-------------------------------------------------------------------

function processando() {

    showModalWindow("Processando...", 0, 0, 200, 80, Effect.BlindDown, Effect.BlindUp);

    winModal.showCenter(true);

    winModal.getContent().innerHTML = "<table style=\"background-color: white; FONT-SIZE: 12px; FONT-FAMILY: tahoma,sans-serif\" border=\"0\">" +

"<tr>" +

"<td><b><img alt=\"\" src=\"../img/indicator.gif\" />Processando, aguarde...</b></td>" +

"</tr>" +

"</table>";

}





//-------------------------------------------------------------------

// Seta o stylesheet ativo

//-------------------------------------------------------------------

function setActiveStyleSheet(title) {

    var i, a, main;

    for(i=0;(a=document.getElementsByTagName("link")[i]);i++) {

        if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {

            a.disabled = true;

            if(a.getAttribute("title") == title) {

                a.disabled = false;

            }

        }

    }

}





/* cria uma window e posiciona no centro */

function windowCenter(url, nome, atribs) {

    var heightA = new RegExp("height\\s*=\\s*(\\d+)", "i").exec(atribs);

    var widthA = new RegExp("width\\s*=\\s*(\\d+)", "i").exec(atribs);

    if(heightA && widthA) {

        var top = parseInt((screen.height - parseInt(heightA[1]) - 30) / 2);

        var left = parseInt((screen.width - parseInt(widthA[1])) / 2);

        atribs += ",top=" + top + ",left=" + left;

    }

    // cria window

    return window.open(url, nome, atribs);

}





/* retorna o primeiro form do documento */

function getFrm() {

    return document.forms[0];

}





/* retorna o elemento conforme o id informado */

function byId(id) {

    return document.getElementById(id);

}





/* centraliza o componente na janela corrente */

/* centraliza o componente na janela corrente */

function centerComponent(comp) {

    centerComponent(comp, 0, 0);

}

function centerComponent(comp, minX, minY) {

    var posX = (getWindowWidth() - comp.offsetWidth) / 2;

    var posY = (getWindowHeight() - comp.offsetHeight) / 2;

    comp.style.left = (minX > posX ? minX : posX) + 'px';

    comp.style.top =  (minY > posY ? minY : posY) + 'px';

}





/* abre uma popup com a mensagem, solicitando que seja selecionado algum botão */

function selectDialog(msg, arrayBotoes, permiteEsc, fnNomeCallBack, atribs) {

    var win = windowCenter('', '_blank', atribs);

    var d = win.document;

    d.writeln("<html><body " + (permiteEsc ? "onkeypress='escape(event);'" : "") + ">");



    d.writeln("<SCRIPT type='text/javascript'>");

    d.writeln("function escape(event) { ");

    d.writeln("if((event.which && event.which == 27) || (event.keyCode && event.keyCode == 27)) { ");

    d.writeln("window.opener." + fnNomeCallBack + "(''); window.close();");

    d.writeln("}");

    d.writeln("}");

    d.writeln("</SCRIPT>");



    d.writeln('<center><table width=90%><tr><th nowrap>' + msg + "</th></tr>");

    d.writeln('<tr><td></td></tr>');

    d.writeln('<tr><td nowrap align=right>');

    for(var i = 0; i < arrayBotoes.length; i++) {

        d.writeln("<input type=button onclick='window.opener." + fnNomeCallBack + "(" + i + "); window.close();' value='" + arrayBotoes[i] + "'>");

    }

    d.writeln('</td></tr></table></center>');

    d.writeln('</body></html>');

}