window.focus();

//simple function to open a new window with a url passed. Used in sax so that a user can type or click on a link entered into a form field to check that its actually working
function checkURL(theURL) {
	if (!isWhitespace(theURL)) {
		var varPos = theURL.indexOf("http://",varPos);
		if (varPos == -1) {
			theURL = "http://" + theURL;
		}
		window.open(theURL);
	} else {
		alert('No link URL has been entered');
	}
}

// used to highlight a forms text label when validation fails
function blurField(label) {
	if (document.getElementById(label).className == 'labelError') document.getElementById(label).className = 'label';
}


// isEmail (STRING s)
// 
// Email address must be of form a@b.c ... in other words:
// * there must be at least one character before the @
// * there must be at least one character before and after the .
// * the characters @ and . are both required
//

function isEmail (s)
{
   if (isEmpty(s)) return false;
   
    // is s whitespace?
    if (isWhitespace(s)) return false;
    
    // there must be >= 1 character before @, so we
    // start looking at character position 1 
    // (i.e. second character)
    var i = 1;
    var sLength = s.length;

    // look for @
    while ((i < sLength) && (s.charAt(i) != "@"))
    { i++
    }

    if ((i >= sLength) || (s.charAt(i) != "@")) return false;
    else i += 2;

    // look for .
    while ((i < sLength) && (s.charAt(i) != "."))
    { i++
    }

    // there must be at least one character after the .
    if ((i >= sLength - 1) || (s.charAt(i) != ".")) return false;
    else return true;
}

// Check whether string s is empty.
function isEmpty(s)
{   
	return ((s == null) || (s.length == 0));
}


// whitespace characters
var whitespace = " \t\n\r";

// Returns true if string s is empty or 
// whitespace characters only.
function isWhitespace (s)
{   
	var i;

    // Is s empty?
    if (isEmpty(s)) return true;

    // Search through string's characters one by one
    // until we find a non-whitespace character.
    // When we do, return false; if we don't, return true.

    for (i = 0; i < s.length; i++)
    {   
		// Check that current character isn't whitespace.
		var c = s.charAt(i);
	
		if (whitespace.indexOf(c) == -1) return false;
    }

    // All characters are whitespace.
    return true;
}



var numeric = "1234567890-."
function isNumeric (s)
{
    for (i = 0; i < s.length; i++)
    {   
		// Check that current character is numeric.
		var c = s.charAt(i);
	
		if (numeric.indexOf(c) == -1) return false;
    }
	return true;
}

function cal1DateBeforeCal2Date(calendarOneField, calendarTwoField)
{
	var publishDateValue=calendarOneField.value;
	//alert('publishDate:'+publishDateValue);
	publishArray=publishDateValue.split("/");
	//alert(publishArray[0] +'/'+ publishArray[1] +'/'+ publishArray[2]);
	var publishDate=new Date();
	publishDate.setYear(publishArray[2]);
	publishDate.setMonth(publishArray[1]-1);
	publishDate.setDate(publishArray[0]);
	//alert(publishDate);
	
	var expireDateValue=calendarTwoField.value;	
	expireArray=expireDateValue.split("/");
	var expireDate=new Date();
	expireDate.setYear(expireArray[2]);
	expireDate.setMonth(expireArray[1]-1);
	expireDate.setDate(expireArray[0]);
	//alert(expireDate);
	
	if(expireDate.getTime() < publishDate.getTime())
	{
		return false;	
	}
	else
	{
		return true;
	}
}	

function getSelectedRadio(buttonGroup) {
   // returns the array number of the selected radio button or -1 if no button is selected
   if (buttonGroup[0]) { // if the button group is an array (one button is not an array)
      for (var i=0; i<buttonGroup.length; i++) {
         if (buttonGroup[i].checked) {
            return i
         }
      }
   } else {
      if (buttonGroup.checked) { return 0; } // if the one button is checked, return zero
   }
   // if we get to this point, no radio button is selected
   return -1;
} // Ends the "getSelectedRadio" function

function getSelectedRadioValue(buttonGroup) {
   // returns the value of the selected radio button or "" if no button is selected
   var i = getSelectedRadio(buttonGroup);
   if (i == -1) {
      return "";
   } else {
      if (buttonGroup[i]) { // Make sure the button group is an array (not just one button)
         return buttonGroup[i].value;
      } else { // The button group is just the one button, and it is checked
         return buttonGroup.value;
      }
   }
} // Ends the "getSelectedRadioValue" function

function getSelectedCheckbox(buttonGroup) {
   // Go through all the check boxes. return an array of all the ones
   // that are selected (their position numbers). if no boxes were checked,
   // returned array will be empty (length will be zero)
   var retArr = new Array();
   var lastElement = 0;
   if (buttonGroup[0]) { // if the button group is an array (one check box is not an array)
      for (var i=0; i<buttonGroup.length; i++) {
         if (buttonGroup[i].checked) {
            retArr.length = lastElement;
            retArr[lastElement] = i;
            lastElement++;
         }
      }
   } else { // There is only one check box (it's not an array)
      if (buttonGroup.checked) { // if the one check box is checked
         retArr.length = lastElement;
         retArr[lastElement] = 0; // return zero as the only array value
      }
   }
   return retArr;
} // Ends the "getSelectedCheckbox" function

function getSelectedCheckboxValue(buttonGroup) {
   // return an array of values selected in the check box group. if no boxes
   // were checked, returned array will be empty (length will be zero)
   var retArr = new Array(); // set up empty array for the return values
   var selectedItems = getSelectedCheckbox(buttonGroup);
   if (selectedItems.length != 0) { // if there was something selected
      retArr.length = selectedItems.length;
      for (var i=0; i<selectedItems.length; i++) {
         if (buttonGroup[selectedItems[i]]) { // Make sure it's an array
            retArr[i] = buttonGroup[selectedItems[i]].value;
         } else { // It's not an array (there's just one check box and it's selected)
            retArr[i] = buttonGroup.value;// return that value
         }
      }
   }
   return retArr;
} // Ends the "getSelectedCheckBoxValue" function

function GetFCKLength(instance)
{
	// This functions shows that you can interact directly with the editor area
	// DOM. In this way you have the freedom to do anything you want with it.

	// Get the editor instance that we want to interact with.
	var oEditor = FCKeditorAPI.GetInstance(instance) ;
	// Get the Editor Area DOM (Document object).
	var oDOM = oEditor.EditorDocument ;
	var iLength ;

	// The are two diffent ways to get the text (without HTML markups).
	// It is browser specific.
	if ( document.all )		// If Internet Explorer.
	{
		iLength = oDOM.body.innerText.length ;
	}
	else					// If Gecko.
	{
		var r = oDOM.createRange() ;
		r.selectNodeContents( oDOM.body ) ;
		iLength = r.toString().length ;
	}
	return iLength;
	//alert( 'Actual text length (without HTML markups): ' + iLength + ' characters' ) ;
}