/*
  $Id: general.js,v 1.3 2003/02/10 22:30:55 hpdl Exp $

  osCommerce, Open Source E-Commerce Solutions
  http://www.oscommerce.com

  Copyright (c) 2003 osCommerce

  Released under the GNU General Public License
*/

function SetFocus(TargetFormName) {
  var target = 0;
  if (TargetFormName != "") {
    for (i=0; i<document.forms.length; i++) {
      if (document.forms[i].name == TargetFormName) {
        target = i;
        break;
      }
    }
  }

  var TargetForm = document.forms[target];

  for (i=0; i<TargetForm.length; i++) {
    if ( (TargetForm.elements[i].type != "image") && (TargetForm.elements[i].type != "hidden") && (TargetForm.elements[i].type != "reset") && (TargetForm.elements[i].type != "submit") ) {
      TargetForm.elements[i].focus();

      if ( (TargetForm.elements[i].type == "text") || (TargetForm.elements[i].type == "password") ) {
        TargetForm.elements[i].select();
      }

      break;
    }
  }
}

function RemoveFormatString(TargetElement, FormatString) {
  if (TargetElement.value == FormatString) {
    TargetElement.value = "";
  }

  TargetElement.select();
}

function CheckDateRange(from, to) {
  if (Date.parse(from.value) <= Date.parse(to.value)) {
    return true;
  } else {
    return false;
  }
}

function IsValidDate(DateToCheck, FormatString) {
  var strDateToCheck;
  var strDateToCheckArray;
  var strFormatArray;
  var strFormatString;
  var strDay;
  var strMonth;
  var strYear;
  var intday;
  var intMonth;
  var intYear;
  var intDateSeparatorIdx = -1;
  var intFormatSeparatorIdx = -1;
  var strSeparatorArray = new Array("-"," ","/",".");
  var strMonthArray = new Array("jan","feb","mar","apr","may","jun","jul","aug","sep","oct","nov","dec");
  var intDaysArray = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);

  strDateToCheck = DateToCheck.toLowerCase();
  strFormatString = FormatString.toLowerCase();

  if (strDateToCheck.length != strFormatString.length) {
    return false;
  }

  for (i=0; i<strSeparatorArray.length; i++) {
    if (strFormatString.indexOf(strSeparatorArray[i]) != -1) {
      intFormatSeparatorIdx = i;
      break;
    }
  }

  for (i=0; i<strSeparatorArray.length; i++) {
    if (strDateToCheck.indexOf(strSeparatorArray[i]) != -1) {
      intDateSeparatorIdx = i;
      break;
    }
  }

  if (intDateSeparatorIdx != intFormatSeparatorIdx) {
    return false;
  }

  if (intDateSeparatorIdx != -1) {
    strFormatArray = strFormatString.split(strSeparatorArray[intFormatSeparatorIdx]);
    if (strFormatArray.length != 3) {
      return false;
    }

    strDateToCheckArray = strDateToCheck.split(strSeparatorArray[intDateSeparatorIdx]);
    if (strDateToCheckArray.length != 3) {
      return false;
    }

    for (i=0; i<strFormatArray.length; i++) {
      if (strFormatArray[i] == 'mm' || strFormatArray[i] == 'mmm') {
        strMonth = strDateToCheckArray[i];
      }

      if (strFormatArray[i] == 'dd') {
        strDay = strDateToCheckArray[i];
      }

      if (strFormatArray[i] == 'yyyy') {
        strYear = strDateToCheckArray[i];
      }
    }
  } else {
    if (FormatString.length > 7) {
      if (strFormatString.indexOf('mmm') == -1) {
        strMonth = strDateToCheck.substring(strFormatString.indexOf('mm'), 2);
      } else {
        strMonth = strDateToCheck.substring(strFormatString.indexOf('mmm'), 3);
      }

      strDay = strDateToCheck.substring(strFormatString.indexOf('dd'), 2);
      strYear = strDateToCheck.substring(strFormatString.indexOf('yyyy'), 2);
    } else {
      return false;
    }
  }

  if (strYear.length != 4) {
    return false;
  }

  intday = parseInt(strDay, 10);
  if (isNaN(intday)) {
    return false;
  }
  if (intday < 1) {
    return false;
  }

  intMonth = parseInt(strMonth, 10);
  if (isNaN(intMonth)) {
    for (i=0; i<strMonthArray.length; i++) {
      if (strMonth == strMonthArray[i]) {
        intMonth = i+1;
        break;
      }
    }
    if (isNaN(intMonth)) {
      return false;
    }
  }
  if (intMonth > 12 || intMonth < 1) {
    return false;
  }

  intYear = parseInt(strYear, 10);
  if (isNaN(intYear)) {
    return false;
  }
  if (IsLeapYear(intYear) == true) {
    intDaysArray[1] = 29;
  }

  if (intday > intDaysArray[intMonth - 1]) {
    return false;
  }

  return true;
}

function IsLeapYear(intYear) {
  if (intYear % 100 == 0) {
    if (intYear % 400 == 0) {
      return true;
    }
  } else {
    if ((intYear % 4) == 0) {
      return true;
    }
  }

  return false;
}

/* Auslesen einer Variable aus der aktuellen URL-Adresse
  url = URL-String
  name = Variable
  Rückgabe: StringArray = Array mit allen Variablen
*/

function ReadUrlVariable() {

   var StringArray = new Array();

   url = window.location.href;
   start_pos = url.indexOf(  '?' );
   i = 0;
   if (start_pos > 0) {
        StringArray[0] = url.substr( 0, start_pos ) ;
        VariablenString = url.substr( start_pos+1 ) ;
   }
   while (start_pos > 0) {
     i++
     start_pos = VariablenString.indexOf(  '&' );
     if (start_pos > 0) {
        StringArray[i] = VariablenString.substr( 0, start_pos ) ;
     } else {
        StringArray[i] = VariablenString;
     }
     VariablenString = VariablenString.substr( start_pos + 1 ) ;
   }

   return StringArray;

}


/* Teilstrings in einem String ersetzen
  String = Zeichenkette, in der ersetzt werden soll
  SuchString = Teilstring, die ersetzt werden soll
  ReplaceString = Teilstring, der eingesetzt wird
  Rückgabe: ReturnString (Neuer String)
*/

function str_java_replace(TextString, SuchString, ReplaceString) {

   start_pos = TextString.indexOf(SuchString);
   TeilString = TextString;
   ReturnString = ""
   while (start_pos > -1 ) {
     ReturnString = ReturnString + TeilString.substr( 0, start_pos ) + ReplaceString;
     TeilString = TeilString.substr( start_pos + SuchString.length ) ;
     start_pos = TeilString.indexOf(  SuchString );
   }
   ReturnString = ReturnString + TeilString

   return ReturnString;
}


function java_confirm(confirm_text) {
  var return_value = false;
  if (confirm(confirm_text)) {
      return_value = true;
  }
  return return_value;
}

function js_href_link(link, paramName, paramValue) {
   var param_start_pos = link.indexOf(paramName);
   var param_old_string = '';
   if ( param_start_pos == -1 ) {
      if ( link.indexOf('?') > 0 ) {
         return link + '&' + paramName + '=' + paramValue;
      } else {
         return link + '?' + paramName + '=' + paramValue;
      }
   } else {
      var param_string = link.substr(param_start_pos);
      var param_old_end_pos = param_string.indexOf(link.indexOf('&')-1);
      if (param_old_end_pos > -1) {
         param_old_string = param_string.substr(param_string, 0, param_old_end_pos );
      } else {
         param_old_string = param_string;
      }
      return str_java_replace(link, param_old_string, paramName + '=' + paramValue);
   }
}

function java_confirm_delete(confirm_text, confirm_link) {
  if ( confirm_link && java_confirm(confirm_text) ) {
     window.location.href = confirm_link;
  }
  return false;
}

function getPosition(element) {
/* der Aufruf dieser Funktion ermittelt die absoluten Koordinaten
   des Objekts element */

  var elem=element,tagname="",x=0,y=0;

/* solange elem ein Objekt ist und die Eigenschaft offsetTop enthaelt
   wird diese Schleife fuer das Element und all seine Offset-Eltern ausgefuehrt */
  while ((typeof(elem)=="object")&&(typeof(elem.tagName)!="undefined"))
  {
    y+=elem.offsetTop;     /* Offset des jeweiligen Elements addieren */
    x+=elem.offsetLeft;    /* Offset des jeweiligen Elements addieren */
    tagname=elem.tagName.toUpperCase(); /* tag-Name ermitteln, Grossbuchstaben */

/* wenn beim Body-tag angekommen elem fuer Abbruch auf 0 setzen */
    if (tagname=="BODY")
      elem=0;

/* wenn elem ein Objekt ist und offsetParent enthaelt
   Offset-Elternelement ermitteln */
    if (typeof(elem)=="object")
      if (typeof(elem.offsetParent)=="object")
        elem=elem.offsetParent;
  }

/* Objekt mit x und y zurueckgeben */
  position=new Object();
  position.x=x;
  position.y=y - document.body.scrollTop;
  return position;
}

function getEndPosition(element) {
/* der Aufruf dieser Funktion ermittelt die absoluten Koordinaten
   des Objekts element */

  var elem=element,tagname="",x=0,y=0;

/* solange elem ein Objekt ist und die Eigenschaft offsetTop enthaelt
   wird diese Schleife fuer das Element und all seine Offset-Eltern ausgefuehrt */
  while ((typeof(elem)=="object")&&(typeof(elem.tagName)!="undefined"))
  {
    y+=elem.offsetBottom;     /* Offset des jeweiligen Elements addieren */
    x+=elem.offsetRight;    /* Offset des jeweiligen Elements addieren */
    tagname=elem.tagName.toUpperCase(); /* tag-Name ermitteln, Grossbuchstaben */

/* wenn beim Body-tag angekommen elem fuer Abbruch auf 0 setzen */
    if (tagname=="BODY")
      elem=0;

/* wenn elem ein Objekt ist und offsetParent enthaelt
   Offset-Elternelement ermitteln */
    if (typeof(elem)=="object")
      if (typeof(elem.offsetParent)=="object")
        elem=elem.offsetParent;
  }

/* Objekt mit x und y zurueckgeben */
  position=new Object();
  position.x=x;
  position.y=y - document.body.scrollTop;
  return position;
}

// Berechnen der neuen Höhe eines Bildes, wenn Breite angegeben
function getNewHeight(imgSrc, width) {
   var picture = new Image();
   picture.src = imgSrc;
   var ratio = width / picture.width;
   var newHeight = parseInt(picture.height * ratio);
   return newHeight;
}

// Berechnen der neuen Höhe eines Bildes für kleine Bilder
function getNewSmallHeight(imgSrc, width) {
   var picture = new Image();
   picture.src = imgSrc;
   if (picture.width < width) return 0;
   var ratio = width / picture.width;
   var newHeight = parseInt(picture.height * ratio);
   return newHeight;
}


// Berechnen der neuen Höhe eines Bildes für kleine Bilder
function getNewSmallWidth(imgSrc, height) {
   var picture = new Image();
   picture.src = imgSrc;
   var ratio = height / picture.height;
   var newWidth = parseInt(picture.width * ratio);
   return newWidth;
}


// Prüfen einer Mailadresse
function checkMailAddress(mailAddress) {
     if ( mailAddress.indexOf('@') > 0  ) {
        return 1;
     } else {
        return 0;
     }
}


function listBoxRowOverEffect(object) {
  object.className = 'class_list_box_contents_mouseover';
}

function listBoxRowOutEffect(object) {
  object.className = 'class_list_box_contents';
}

function listOnClick(link) {
  document.location.href=link;
}

function showMainColorPicture(newMainPic) {
   var params = newMainPic.split(";");
   var picPath = params[0];
   picPath += params[1];
   document.getElementById("mainPicture").src = picPath;
   document.getElementById("colorText").innerHTML = params[2];
}