function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function IsEmail (objEmailString)
{
    // Email address must be of form a@b.c
    // * 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

    // there must be >= 1 character before @, so we
    // start looking at character position 1 
    // (i.e. second character)
	
	var s = objEmailString.value;
	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 IsNothing (s)
{
	if (s == null)
			return false
	
	var i;
     // whitespace characters
     var whitespace = " \t\n\r";
  	 var str = s.value;
     // Is s empty?
     if (isEmpty(str))
	 {	
	 	return false;
	 }

     for (i = 0; i < str.length; i++)
     {
          // Check that current character isn't whitespace.
          var c = str.charAt(i);

          if (whitespace.indexOf(c) == -1) return true;
     }

     // All characters are whitespace.
     return false;
}

function validate(frm)
  {
	var frmRegister;
	msg = '';
	value=true;
	var FirstName = document.getElementById('txtFName');
	var LastName = document.getElementById('txtLName');
	var Email = document.getElementById('txtEmail');
	var ConfirmEmail = document.getElementById('txtCEmail');
	
	
	if (FirstName.value == "")
	{
		msg = msg + "\nFirst Name cannot be blank."
		value = false;
	}
	
	if (LastName.value == "")
	{
		msg = msg + "\nLast Name cannot be blank."
		value = false;
	}
		
	if (IsNothing(Email) == false) 
	{
		msg = msg + "\nEmail Address cannot be blank."
		value = false;
	}
	else
	{
		if ((IsEmail(Email) == false)) 
		{
			msg = msg + "\nPlease Enter The Valid Email Address."
			value = false;
		}
	}

	if (Email.value!=ConfirmEmail.value) 
			{
				msg = msg + "\nPlease ensure that the two E-mail addresses are the same"
				value = false;
			}

	


if (value == false)
		{
			alert(msg);
		}
	else
		{	
			document.frmUnsubscribe.submit();
		}
}