function openLayer( url, height, width, e )
{
	var layer = document.getElementById( 'PictureBox' );
	layer.style.display = "block";
	
	var picture = document.getElementById( 'ThePicture' );
	picture.src = ""; 
	picture.src = url;
	
	var tempX = 0;
    var tempY = 0;
    if( document.all )
    {   
        tempX = event.clientX + 5 + document.documentElement.scrollLeft;
        tempY = event.clientY + 5 + document.documentElement.scrollTop;
    }
    else
    {
        tempX = e.pageX + 5;
        tempY = e.pageY + 5;
    }
    
    tempX = tempX - (width/2);
    tempY = tempY - (height/2);
    layer.style.left = tempX + 'px';
    layer.style.top = tempY + 'px';
}

function laurieLayer( url, height, width, e )
{
	var layer = document.getElementById( 'LauriePictureBox' );
	layer.style.display = "block";
	
	var picture = document.getElementById( 'LauriePicture' );
	picture.src = ""; 
	picture.src = url;
	
	var tempX = 0;
    var tempY = 0;
    if( document.all )
    {   
        tempX = event.clientX + 5 + document.documentElement.scrollLeft;
        tempY = event.clientY + 5 + document.documentElement.scrollTop;
    }
    else
    {
        tempX = e.pageX + 5;
        tempY = e.pageY + 5;
    }
    
    tempX = tempX - (width/2);
    tempY = tempY - (height/2);
    layer.style.left = tempX + 'px';
    layer.style.top = tempY + 'px';
}

function closeLayer()
{
        var picture = document.getElementById( 'ThePicture' );
	picture.src = ""; 
	var layer = document.getElementById( 'PictureBox' );
	layer.style.display = "none";
}

function closeLaurieLayer()
{
        var picture = document.getElementById( 'LauriePicture' );
	picture.src = ""; 
	var layer = document.getElementById( 'LauriePictureBox' );
	layer.style.display = "none";
}

function isEmail (s)
{   if (isEmpty(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;
}


function isEmpty(s)
{   return ((s == null) || (s.length == 0))
}

function textBoxValidation( inputId, validatorId )
{
	var input = document.getElementById( inputId );
	var validator = document.getElementById( validatorId );
	if( isEmpty( input.value ) )
	{
		validator.style.display = "block";
		return false;
	}
	else
	{
		validator.style.display = "none";
		return true;
	}
}

function validate(EmailForm)
{
  var isValid = true;
  
  var email = document.getElementById( 'EmailAddress' );
  var subject = document.getElementById( 'EmailSubject' );
  var message  = document.getElementById( 'EmailMessage' );
  
  var emailVal1 = document.getElementById( 'emailValidator');
  var emailVal2 = document.getElementById( 'emailValidator2' );
  var subjectVal = document.getElementById( 'subjectValidator' );
  var messageVal = document.getElementById( 'messageValidator' );
  
  if( isEmpty( email.value ) )
  {
    emailVal1.style.display = "block";
    isValid = false;
  }
  
  else if( isEmail( email.value ) == false)
  {
    emailVal1.style.display="none";
    emailVal2.style.display="block";
    isValid = false;
          
  }
  else if (isEmail( email.value ) == true )
    emailVal2.style.display="none";
          
          
  if( isEmpty( subject.value ) )
  {
    subjectVal.style.display = "block";
    isValid = false;
  }
  else
    subjectVal.style.display = "none";
    
  if( isEmpty( message.value ) )
  {
    messageVal.style.display = "block";
    isValid = false;
  }
  else
    messageVal.style.display="none";
  
  
  return isValid;
}