/*
* Devuelve true si el texto esta en blanco, false de lo contrario
*/
function isBlanco(texto)
{

        var i;
        largo = texto.length;
        for (i=0; i < largo ; i++ )
                if ( texto.charAt(i) !=" ")
                        return false;

        return true;
}

/*
* Verifica si un caracter es un numero o no
*/
function isDigit(caracter)
{
       if ((caracter.charAt(0) >= "0") && (caracter.charAt(0) <= "9"))
                return  true;
  return false;
}


/*
*  Verifica si un texto es numerico o no
*/
function isNumber(texto)
{
      largo = texto.length
      if (largo == 0)
                return false;
      for (i=0; i < largo ; i++ )
              if (!isDigit(texto.charAt(i)))
                      return false;
  return true;
}

/* Verifica que no tenga "espacio" */
function tieneSpace(texto)
{
      largo = texto.length
      if (largo == 0)
                return false;
      for (i=0; i < largo ; i++ ) {
              if (texto.charAt(i)==' ')
                      return true;
      }
  return false;
}

//verifica si el objeto select tiene entre sus opciones
//el valor "extVal"(valor externo), de ser asi, a esa
//opcion se le asigna SELECTED
function markSelect(selectObj, extVal) {
  //alert("Objeto:"+selectObj.name+"\nLargo:"+selectObj.options.length);
  for (i=0; i<selectObj.options.length; i++) {
     //alert("Indice["+i+"]: "+selectObj.options[i].value);
     //alert("if "+selectObj.options[i].value+"=="+extVal);
    if (selectObj.options[i].value==extVal) {
           selectObj.options[i].selected=true;
     }
  }
  return true;
}

/*
* Hace la CHOREZA de cambiar el color de la fila cuando se pasa el mouse sobre ella
* Me robe la funcion como un vulgar ladron desde el script phpMyAdmin
*/

/**
 * This array is used to remember mark status of rows in browse mode
 * Si no lo ponen (buenas tardes) no funciona
 */
var marked_row = new Array;

function setPointer(theRow, theRowNum, theAction, theDefaultColor, thePointerColor, theMarkColor)
{
    var theCells = null;

    // 1. Pointer and mark feature are disabled or the browser can't get the
    //    row -> exits
    if ((thePointerColor == '' && theMarkColor == '')
        || typeof(theRow.style) == 'undefined') {
        return false;
    }

    // 2. Gets the current row and exits if the browser can't get it
    if (typeof(document.getElementsByTagName) != 'undefined') {
        theCells = theRow.getElementsByTagName('td');
    }
    else if (typeof(theRow.cells) != 'undefined') {
        theCells = theRow.cells;
    }
    else {
        return false;
    }

    // 3. Gets the current color...
    var rowCellsCnt  = theCells.length;
    var domDetect    = null;
    var currentColor = null;
    var newColor     = null;
    // 3.1 ... with DOM compatible browsers except Opera that does not return
    //         valid values with "getAttribute"
    if (typeof(window.opera) == 'undefined'
        && typeof(theCells[0].getAttribute) != 'undefined') {
        currentColor = theCells[0].getAttribute('bgcolor');
        domDetect    = true;
    }
    // 3.2 ... with other browsers
    else {
        currentColor = theCells[0].style.backgroundColor;
        domDetect    = false;
    } // end 3

    // 4. Defines the new color
    // 4.1 Current color is the default one
    if (currentColor == ''
        || currentColor.toLowerCase() == theDefaultColor.toLowerCase()) {
        if (theAction == 'over' && thePointerColor != '') {
            newColor              = thePointerColor;
        }
        else if (theAction == 'click' && theMarkColor != '') {
            newColor              = theMarkColor;
        }
    }
    // 4.1.2 Current color is the pointer one
    else if (currentColor.toLowerCase() == thePointerColor.toLowerCase()
             && (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum])) {
        if (theAction == 'out') {
            newColor              = theDefaultColor;
        }
        else if (theAction == 'click' && theMarkColor != '') {
            newColor              = theMarkColor;
            marked_row[theRowNum] = true;
        }
    }
    // 4.1.3 Current color is the marker one
    else if (currentColor.toLowerCase() == theMarkColor.toLowerCase()) {
        if (theAction == 'click') {
            newColor              = (thePointerColor != '')
                                  ? thePointerColor
                                  : theDefaultColor;
            marked_row[theRowNum] = (typeof(marked_row[theRowNum]) == 'undefined' || !marked_row[theRowNum])
                                  ? true
                                  : null;
        }
    } // end 4

    // 5. Sets the new color...
    if (newColor) {
        var c = null;
        // 5.1 ... with DOM compatible browsers except Opera
        if (domDetect) {
            for (c = 0; c < rowCellsCnt; c++) {
                theCells[c].setAttribute('bgcolor', newColor, 0);
            } // end for
        }
        // 5.2 ... with other browsers
        else {
            for (c = 0; c < rowCellsCnt; c++) {
                theCells[c].style.backgroundColor = newColor;
            }
        }
    } // end 5

    return true;
} // end of the 'setPointer()' function

//open_window()
function openWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

//idNota: numero del 1 al 44 que representa el numero de cuenta
//        a la que la nota hace referencia
//
//contNota: texto ingresado en celda TEXT (textarea.value)
//
//
function updateContNota(nota, contNota) {
   opener.document.forms[0].elements[nota].value=contNota;
   window.close();
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}

function makeArray(n) {
        this.length = n;
        for (var k = 0; k<= n; k++) {
                this[k] = 0
        }
        return this
}

function alertamail(m) {
        alert("Ingrese un Correo Electrónico válido");
        document.forms[0].elements[m].focus();
        return false;
}

function validomail(s) {
        var em = document.forms[0].elements[s].value;
        var arroa ="@"
        var coma = em.indexOf(",");
        largomail = em.length
        if(em.indexOf(' ')>-1){
                alertamail(s);
                return false;
        }

        if (largomail > 0){
                var ap = 0;
                var pp = 0;
                var lvari= 0;
                var nu = 0;
                var nd = 0;
                var ncorreo = new makeArray(2)
                ap = em.indexOf(arroa);
                largomail = em.length
                if (ap < 1){
                        alertamail(s);
                        return false;
                } else {
                        ncorreo = em.split(arroa);
                        nusuario = ncorreo[0];
                        ndominio = ncorreo[1];
                        nu = nusuario.indexOf(".");
                        nd = ndominio.indexOf(".");
                        pp = em.indexOf(".");
                        lvari = ndominio.length
                        if (nd < 1) {
                                alertamail(s);
                                return false;
                        }
                }
        }
        return true;
}