/* $Id: functions.js,v 1.7 2001/11/24 16:59:54 loic1 Exp $ */


/**
 * Displays an confirmation box beforme to submit a "DROP/DELETE/ALTER" query.
 * This function is called while clicking links
 *
 * @param   object   the link
 * @param   object   the sql query to submit
 *
 * @return  boolean  whether to run the query or not
 */
function confirmLink(theLink, theSqlQuery)
{
    // Confirmation is not required in the configuration file
    if (confirmMsg == '') {
        return true;
    }

    var is_confirmed = confirm(confirmMsg + ' :\n' + theSqlQuery);
    if (is_confirmed) {
        theLink.href += '&is_js_confirmed=1';
    }

    return is_confirmed;
} // end of the 'confirmLink()' function


/**
 * Displays an error message if a "DROP DATABASE" statement is submitted
 * while it isn't allowed, else confirms a "DROP/DELETE/ALTER" query before
 * sumitting it if required.
 * This function is called by the 'checkSqlQuery()' js function.
 *
 * @param   object   the form
 * @param   object   the sql query textarea
 *
 * @return  boolean  whether to run the query or not
 *
 * @see     checkSqlQuery()
 */
function confirmQuery(theForm1, sqlQuery1)
{
    // Confirmation is not required in the configuration file
    if (confirmMsg == '') {
        return true;
    }

    // The replace function (js1.2) isn't supported
    else if (typeof(sqlQuery1.value.replace) == 'undefined') {
        return true;
    }

    // js1.2+ -> validation with regular expressions 
    else {
        // "DROP DATABASE" statement isn't allowed
        if (noDropDbMsg) {
            var drop_re = new RegExp('DROP\\s+(IF EXISTS\\s+)?DATABASE', 'i');
            if (drop_re.test(sqlQuery1.value)) {
                alert(noDropDbMsg);
                theForm1.reset();
                sqlQuery1.focus();
                return false;
            } // end if
        } // end if

        // Confirms a "DROP/DELETE/ALTER" statement
        var do_confirm_re_0 = new RegExp('DROP\\s+(IF EXISTS\\s+)?(TABLE|DATABASE)', 'i');
        var do_confirm_re_1 = new RegExp('ALTER TABLE\\s+((`[^`]+`)|([A-Za-z0-9_$]+))\\s+DROP', 'i');
        var do_confirm_re_2 = new RegExp('DELETE FROM', 'i');
        if (do_confirm_re_0.test(sqlQuery1.value)
            || do_confirm_re_1.test(sqlQuery1.value)
            || do_confirm_re_2.test(sqlQuery1.value)) {
            var message      = (sqlQuery1.value.length > 100)
                             ? sqlQuery1.value.substr(0, 100) + '\n    ...'
                             : sqlQuery1.value;
            var is_confirmed = confirm(confirmMsg + ' :\n' + message);
            // drop/delete/alter statement is confirmed -> update the
            // "is_js_confirmed" form field so the confirm test won't be
            // run on the server side and allows to submit the form
            if (is_confirmed) {
                theForm1.elements['is_js_confirmed'].value = 1;
                return true;
            }
            // "DROP/DELETE/ALTER" statement is rejected -> do not submit
            // the form
            else {
                window.focus();
                sqlQuery1.focus();
                return false;
            } // end if (handle confirm box result)
        } // end if (display confirm box)
    } // end confirmation stuff

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


/**
 * Displays an error message if the user submitted the sql query form with no
 * sql query, else checks for "DROP/DELETE/ALTER" statements
 *
 * @param   object   the form
 *
 * @return  boolean  always false
 *
 * @see     confirmQuery()
 */
function checkSqlQuery(theForm)
{
    var sqlQuery = theForm.elements['sql_query'];

    // The replace function (js1.2) isn't supported -> basic tests
    if (typeof(sqlQuery.value.replace) == 'undefined') {
        var isEmpty  = (sqlQuery.value == '') ? 1 : 0;
        if (isEmpty && typeof(theForm.elements['sql_file']) != 'undefined') {
            isEmpty  = (theForm.elements['sql_file'].value == '') ? 1 : 0;
        }
        if (isEmpty && typeof(theForm.elements['id_bookmark']) != 'undefined') {
            isEmpty  = (theForm.elements['id_bookmark'].value == null || theForm.elements['id_bookmark'].value == '');
        }
    }
    // js1.2+ -> validation with regular expressions 
    else {
        var space_re = new RegExp('\\s+');
        var isEmpty  = (sqlQuery.value.replace(space_re, '') == '') ? 1 : 0;
        // Checks for "DROP/DELETE/ALTER" statements
        if (!isEmpty && !confirmQuery(theForm, sqlQuery)) {
            return false;
        }
        if (isEmpty && typeof(theForm.elements['sql_file']) != 'undefined') {
            isEmpty  = (theForm.elements['sql_file'].value.replace(space_re, '') == '') ? 1 : 0;
        }
        if (isEmpty && typeof(theForm.elements['id_bookmark']) != 'undefined') {
            isEmpty  = (theForm.elements['id_bookmark'].value == null || theForm.elements['id_bookmark'].value == '');
            isEmpty  = (theForm.elements['id_bookmark'].selectedIndex == 0);
        }
        if (isEmpty) {
            theForm.reset();
        }
    }

    if (isEmpty) {
        sqlQuery.select();
        alert(errorMsg0);
        sqlQuery.focus();
        return false;
    }

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


/**
 * Displays an error message if an element of a form hasn't been completed and
 * should be
 *
 * @param   object   the form
 * @param   string   the name of the form field to put the focus on
 *
 * @return  boolean  whether the form field is empty or not
 */
function emptyFormElements(theForm, theFieldName)
{
    var theField = theForm.elements[theFieldName];
    // Whether the replace function (js1.2) is supported or not
    var isRegExp = (typeof(theField.value.replace) != 'undefined');

    if (!isRegExp) {
        var isEmpty  = (theField.value == '') ? 1 : 0;
    } else {
        var space_re = new RegExp('\\s+');
        var isEmpty  = (theField.value.replace(space_re, '') == '') ? 1 : 0;
    }
    if (isEmpty) {
        theForm.reset();
        theField.select();
        alert(errorMsg0);
        theField.focus();
        return false;
    }

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


/**
 * Ensures a value submitted in a form is numeric and is in a range
 *
 * @param   object   the form
 * @param   string   the name of the form field to check
 * @param   integer  the minimum authorized value
 * @param   integer  the maximum authorized value
 *
 * @return  boolean  whether a valid number has been submitted or not
 */
function checkFormElementInRange(theForm, theFieldName, min, max)
{
    var theField         = theForm.elements[theFieldName];
    var val              = parseInt(theField.value);

    if (typeof(min) == 'undefined') {
        min = 0;
    }
    if (typeof(max) == 'undefined') {
        max = Number.MAX_VALUE;
    }

    // It's not a number
    if (isNaN(val)) {
        theField.select();
        alert(errorMsg1);
        theField.focus();
        return false;
    }
    // It's a number but it is not between min and max
    else if (val < min || val > max) {
        theField.select();
        alert(val + errorMsg2);
        theField.focus();
        return false;
    }
    // It's a valid number
    else {
        theField.value = val;
    }

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


/**
 * Ensures the choice between 'transmit', 'zipped', 'gzipped' and 'bzipped'
 * checkboxes is consistant
 *
 * @param   object   the form
 * @param   string   a code for the action that causes this function to be run
 *
 * @return  boolean  always true
 */
function checkTransmitDump(theForm, theAction)
{
    var formElts = theForm.elements;

    // 'zipped' option has been checked
    if (theAction == 'zip' && formElts['zip'].checked) {
        if (!formElts['asfile'].checked) {
            theForm.elements['asfile'].checked = true;
        }
        if (typeof(formElts['gzip']) != 'undefined' && formElts['gzip'].checked) {
            theForm.elements['gzip'].checked = false;
        }
        if (typeof(formElts['bzip']) != 'undefined' && formElts['bzip'].checked) {
            theForm.elements['bzip'].checked = false;
        }
    }
    // 'gzipped' option has been checked
    else if (theAction == 'gzip' && formElts['gzip'].checked) {
        if (!formElts['asfile'].checked) {
            theForm.elements['asfile'].checked = true;
        }
        if (typeof(formElts['zip']) != 'undefined' && formElts['zip'].checked) {
            theForm.elements['zip'].checked = false;
        }
        if (typeof(formElts['bzip']) != 'undefined' && formElts['bzip'].checked) {
            theForm.elements['bzip'].checked = false;
        }
    }
    // 'bzipped' option has been checked
    else if (theAction == 'bzip' && formElts['bzip'].checked) {
        if (!formElts['asfile'].checked) {
            theForm.elements['asfile'].checked = true;
        }
        if (typeof(formElts['zip']) != 'undefined' && formElts['zip'].checked) {
            theForm.elements['zip'].checked = false;
        }
        if (typeof(formElts['gzip']) != 'undefined' && formElts['gzip'].checked) {
            theForm.elements['gzip'].checked = false;
        }
    }
    // 'transmit' option has been unchecked
    else if (theAction == 'transmit' && !formElts['asfile'].checked) {
        if (typeof(formElts['zip']) != 'undefined' && formElts['zip'].checked) {
            theForm.elements['zip'].checked = false;
        }
        if ((typeof(formElts['gzip']) != 'undefined' && formElts['gzip'].checked)) {
            theForm.elements['gzip'].checked = false;
        }
        if ((typeof(formElts['bzip']) != 'undefined' && formElts['bzip'].checked)) {
            theForm.elements['bzip'].checked = false;
        }
    }

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


/**
 * Sets/unsets the pointer in browse mode
 *
 * @param   object   the table row
 * @param   object   the color to use for this row
 *
 * @return  boolean  whether pointer is set or not
 */
function setPointer(theRow, thePointerColor)
{
    if (typeof(theRow.style) == 'undefined' || typeof(theRow.cells) == 'undefined') {
        return false;
    }

    var row_cells_cnt           = theRow.cells.length;
    for (var c = 0; c < row_cells_cnt; c++) {
        theRow.cells[c].bgColor = thePointerColor;
    }

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

function prendiElementoDaId(id_elemento) {
			if (document.getElementById){
				elemento = document.getElementById(id_elemento);
			} else {
				elemento = document.all[id_elemento];
			}
			return elemento;
		}
		function PosizioneDiv(){
			prendiElementoDaId('Sfondo_layout').style.left=(document.body.clientWidth/2) - (parseInt(prendiElementoDaId('Sfondo_layout').style.width)/2) + 'px';
			prendiElementoDaId('Menu').style.left=(parseInt(prendiElementoDaId('Sfondo_layout').style.left)+50)  +'px';
		}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}


function apri(str) {
  searchWin = window.open(str,'apri','scrollbars=no,resizable=no,width=400,height=350,status=no,location=no,toolbar=no,target=no');
}
function apri1(str) {
  searchWin = window.open(str,'apri1','scrollbars=no,resizable=no,width=300,height=450,status=no,location=no,toolbar=no,target=_top');
}

function FrontPage_Form1_Validator(theForm) {
  if (theForm.Nome.value == "") {
    alert("Inserire un valore per il campo \"Nome\".");
    theForm.Nome.focus();
    return (false);
  }

  if (theForm.Stato.value == "") {
    alert("Inserire un valore per il campo \"Stato\".");
    theForm.Stato.focus();
    return (false);
  }

  if (theForm.Cognome.value == "") {
    alert("Inserire un valore per il campo \"Cognome\".");
    theForm.Cognome.focus();
    return (false);
  }

  if (theForm.Ditta.value == "") {
    alert("Inserire un valore per il campo \"Ditta\".");
    theForm.Ditta.focus();
    return (false);
  }

  if (theForm.Indirizzo.value == "") {
    alert("Inserire un valore per il campo \"Indirizzo\".");
    theForm.Indirizzo.focus();
    return (false);
  }

  if (theForm.email.value == "") {
    alert("Inserire un valore per il campo \"email\".");
    theForm.email.focus();
    return (false);
  }

  if (theForm.Citta.value == "") {
    alert("Inserire un valore per il campo \"Citta\".");
    theForm.Citta.focus();
    return (false);
  }

  if (theForm.CAP.value == "") {
    alert("Inserire un valore per il campo \"CAP\".");
    theForm.CAP.focus();
    return (false);
  }

  if (theForm.Provincia.value == "") {
    alert("Inserire un valore per il campo \"Provincia\".");
    theForm.Provincia.focus();
    return (false);
  }
  return (true);
}