var whitespace = " \t\n\r";
var defaultEmptyOK = false

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

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;
}

function isEmail (s)
{   if (isEmpty(s)) 
       if (isEmail.arguments.length == 1) return defaultEmptyOK;
       else return (isEmail.arguments[1] == true);
   
    // 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;
}

function borderit(which,color){
   //if IE 4+ or NS 6+
   if (document.all||document.getElementById){
      which.style.borderColor=color
   }
}

function ChangeProduct() {
   var ItemID = document.ProductForm.Product.options[document.ProductForm.Product.selectedIndex].value;

   if(ItemID != '0') {
      var URL = 'http://RichQuote.com/info/' + ItemID;
      window.location = URL;
   }
}

function ReviewProduct() {
   var LinkID = document.ReviewForm.LinkID.options[document.ReviewForm.LinkID.selectedIndex].value;

   if(LinkID != '0') {
      var URL = 'http://RichQuote.com/review/' + LinkID;
      window.location = URL;
   }
}