function openWindow(theURL,winName,features)
{ 
	window.open(theURL,winName,features);
}

function CheckRegForm()
{
	var Err = '';
	var blnGroupSelected = false
	var FName = document.forms['NewsletterRegisterForm'].FirstName;
	var LName = document.forms['NewsletterRegisterForm'].LastName;
	var Email = document.forms['NewsletterRegisterForm'].Email;
		
	// Perform general field validation
	if( FName.value == 'FirstName' || FName.value.length == 0 )
	{
		Err += 'Please enter your First Name\n';
	}
	if( LName.value == 'LastName' || LName.value.length == 0 )
	{
		Err += 'Please enter your Last Name\n';
	}
	if( Email.value.length == 0 )
	{
		Err += 'Please enter your Email Address\n';
	}
	else
	{
		if( !isValidRegEmail( Email.value ) )
		{
			Err += 'Please enter a valid Email Address';
		}
	}
	if( Err == '' )
	{
		document.forms['NewsletterRegisterForm'].submit();
	}
	else
	{
		alert(Err);
	}
}

function isValidRegEmail(email)
{
	invalidChars=" /:,;!#$%^&*()+=~|<>?][}{\\"					
	for (i=0;i<invalidChars.length;i++)
	{
		badChar=invalidChars.charAt(i)
		if (email.indexOf(badChar,0)>-1)
		{
			return false
		}
	}
	if(email.charAt(0)=="_" || (email.charAt(0)=="@" && email.charAt(1)=="@"))
	{
		return false
	}
	atPos=email.indexOf("@",1)
	if (atPos==-1)
	{
		return false
	}
	if (email.charAt(atPos+1)=="." || email.charAt(atPos+1)=="_")
	{
		return false
	}
	if (email.indexOf("@",atPos+1)>-1)
	{
		return false
	}
	
	periodPos=email.indexOf(".",atPos)
	if (periodPos==-1 || email.charAt(0)==".")
	{
		return false
	}
		
	var l = email.length
	if (l>email.lastIndexOf(".")+4 || l<email.lastIndexOf(".")+3)
	{
		return false
	}
	{	
		if (l==email.lastIndexOf(".")+5)
		{
			if (!(email.charAt(l-7)=="." || email.charAt(l-6)=="."))
			{
				return false		
			}
		}
	}	
	return true
}

// get date to display in copyright section of the footer.
function showYear()
					{
						var theDate = new Date();
						document.write(theDate.getFullYear());
					}
		
// reset search field
function clearSearch()
					{
 						document.getElementById('searchField').value = '';
					}
					
// populate search field
function addSearchTxt()
					{
						var srchFld = document.getElementById('searchField').value;
						
						 if (srchFld == '')
								{
									document.getElementById('searchField').value = 'Site search...';
								}
					}
					
function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
{
   var arVersion = navigator.appVersion.split("MSIE")
   var version = parseFloat(arVersion[1])
   if ((version >= 5.5) && (document.body.filters)) 
   {
      for(var i=0; i<document.images.length; i++)
      {
         var img = document.images[i]
         var imgName = img.src.toUpperCase()
         if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
         {
            var imgID = (img.id) ? "id='" + img.id + "' " : ""
            var imgClass = (img.className) ? "class='" + img.className + "' " : ""
            var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
            var imgStyle = "display:inline-block;" + img.style.cssText 
            if (img.align == "left") imgStyle = "float:left;" + imgStyle
            if (img.align == "right") imgStyle = "float:right;" + imgStyle
            if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
            var strNewHTML = "<span " + imgID + imgClass + imgTitle
            + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
            + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
            + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
            img.outerHTML = strNewHTML
            i = i-1
         }
      }
   }    
}
window.attachEvent("onload", correctPNG);