var emptyPattern = new RegExp("[^ \\t\\v\\n\\r\\f]");

function refreshFramesExclude(frameToExclude,hrefInclude)
{
  //Get array of frames
  var frames = parent.frames;
  var exclude = parent.frames[frameToExclude];
  if (hrefInclude == null)
  {
    hrefInclude = '';
  }
  for (i = 0; i < frames.length; i++)
  {
    //Make sure this frame is not reloaded
    if (frames[i] != exclude)
    {
      frames[i].location.href = frames[i].location.href + "&" + hrefInclude;
    }
  }
}

function refreshFrame(frameName,url)
{
  //Check the frame name
  if (frameName == '') return;
  //Retrieve the frame
  var frame = parent.frames[frameName];
  if (frame != null)
  {
    frame.location.reload();
  }
  return;
}
/*
  Changes a form's action attribute.
*/
function swapAction(theForm, newValue, preserveParams)
{
  if (preserveParams)
  {
    var theIndex = theForm.action.indexOf('?');
    if (theIndex != -1)
    {
      theForm.action = newValue + theForm.action.substring(theIndex);
    }
    else
    {
      theForm.action = newValue;
    }
  }
  else
  {
    theForm.action = newValue;
  }
}
/*
  Tests a text box for having any character except whitespace characters.  Returns false if such a character is found.
*/
function isFieldEmpty(field)
{
  if (!emptyPattern.test(field.value))
  {
    return true;
  }
  return false;
}
/* Resolves a field against a nbr index */
function resolveField(field, nbr)
{
  if (field)
  {
    if (field.length)
    {
      return field[nbr];
    }
    else
    {
      return field;
    }
  }
  else
  {
    return null;
  }
}

/*
  Correctly parses and returns the int value found in the String param theValue.  JavaScript's built in parseInt does
  not handle stripping off of zeroes in the beginning.  Such as in the case of '00003'.  This function will return 3.
*/
function parseIntCorrect(theValue)
{
  if (theValue.length > 1)
  {
    theValue.replace(".", ",");
    var i = 0;
    var success = false;
    while ((!success)&&(i<theValue.length))
    {
      if (theValue.charAt(0)=='0')
      {
        theValue = theValue.substring(1, theValue.length);
      }
      else
      {
        success = true;
      }
      i++;
    }
  }
  return parseInt(theValue);
}
/*
  Assumes there is a hidden field targetBox and a checkbox requestingControl, sets the .value property of
  targetBox equal to the value of requestingControl if requestingControl is checked.
*/
function setTiedId(requestingControl, theIndex, targetBox)
{
  if (targetBox.length)
  {
    targetBox[theIndex].value = (requestingControl.checked)?requestingControl.value:'';
  }
  else
  {
    targetBox.value = (requestingControl.checked)?requestingControl.value:'';
  }
}

function executeSelectionUrl(select,invalidSelection)
{
  //Check for valid component
  if (!select) return;
  //Get option var
  var selectedOption = select.options[select.selectedIndex];
  //Check for valid selection
  if (selectedOption.value == invalidSelection) return;
  //Execute the url
  executeUrl(selectedOption.value);
}

function executeUrl(url)
{
  if (url == '') return;
  top.location=url;
}

function setFrameSource(frameName, url)
{
  //Verify params
  if (frameName == null || frameName == '') return;
  //Set frame
  var frame = parent.frames[frameName];
  if (frame == null) return;
  frame.location.href = url;
}

function executeLink(frameName, url)
{
  //Verify params
  if (frameName == null || frameName == '') return;
  var frame = parent.frames[frameName];
  if (frame == null) return;
  frame.location.href = url;
}

function swapMenuClass(element,className)
{
  //Check element
  if (element == null) return;
  if (className == null || className == '') return
  //Check element for hot tab
  if (element.className == 'rocheNavMenuTabFocus') return;
  //Set class name
  element.className = className;
}

function setMenuTabFocus(tabId)
{
  //Check element
  if (tabId == null || tabId == "") return;
  var element = document.getElementById(tabId);
  if (!element) return;
  //Set element style
  swapMenuClass(element,'rocheNavMenuTabFocus');
  return;
}

function swapClass(element,className)
{
  //Check element
  if (element == null) return;
  if (className == null || className == '') return
  //Set class name
  element.className = className;
}

function openWin(URL)
{
  aWindow = window.open(URL,"WBT","resizable=0,toolbar=no,scrollbars=no,width=800,height=600,status=no");
}