var emailPat   = /^[a-z0-9][^\(\)\<\>\@\,\;\:\\\"\]\[]*\@[a-z0-9][a-z0-9\-\.]*\.[a-z]{2,4}$/i;

function validate()
{
	with (document.forms[0])
	{
		if (realname.value == "")
		{
			errorMsg = 'Please enter your Name.';
			displayError(errorMsg);
			realname.focus();
			realname.select();
			return false;
		}//end if
		if (!emailPat.test(email.value))
		{
			errorMsg = 'Your email address must be valid. \n i.e. name@host.com';
			displayError(errorMsg);
			email.focus();
			email.select();
			return false;
		}//end if
		if (message.value == "")
		{
			errorMsg = 'Please enter your message.';
			displayError(errorMsg);
			message.focus();
			message.select();
			return false;
		}//end if
	}//end with
}//end function validate()

function displayError(errorString)
{
	alert(errorString);
}//end function displayError