/*
   carbon.com,  E-Commerce Solutions
   Copyright (c) 2006  3Esolutions
 */
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;

}