// JavaScript Document

<!--
// Start hiding JavaScript code from old browsers.

var LeftFormFocus = 0;
var LeftFormSubmit = 0;

String.prototype.trim = function() {
	a = this.replace(/^\s+/, '');
	return a.replace(/\s+$/, '');
};


function ValidateLeft(theForm)
{

	if ((LeftFormFocus == 1) || (LeftFormSubmit == 1)) {
		var ReturnCode = ValidateEmail(theForm.EmailAddress);
	} else if ((LeftFormFocus == 2) || (LeftFormSubmit == 2)) {
		var ReturnCode = ValidateSearch(theForm.SearchText);
	} else {
		var ReturnCode = true;
	}

	return (ReturnCode);
}

function ValidateEmail(EmailField)
{

  var CheckAmp = false;
  var CheckPeriod = false;
  var checkStr = EmailField.value;
  if(checkStr.indexOf("@") != -1)  {
     CheckAmp = true; 
  }
  if(checkStr.indexOf(".") != -1) {
     CheckPeriod = true;
  }
  if ((CheckAmp == false) || (CheckPeriod == false)) {
    alert("All e-mail addresses must have an @ symbol and a period.\nExample: user@aol.com");
    EmailField.focus();
    return (false);
  }

  return (true);
}

function ValidateSearch(SearchField)
{

  var SearchString = SearchField.value;
  if (SearchString.trim().length == 0) {
    alert("Please enter a word to search for.");
    SearchField.focus();
    return (false);
  }

  return (true);
}
//-->