function emailvalidation( obj, eMailObj, entered )
{
	with( eMailObj )
	{
		if( value==null || value=="" )
		{
			alert( "You must enter an e-mail address.");
			return false;
		}
		apos = value.indexOf("@");
		dotpos = value.lastIndexOf(".");
		lastpos = value.length-1;
		if( apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2 )
		{
			alert( "The e-mail address you entered is not valid." );
			return false;
		}
		else
		{
			return true;
		}
	}
}

function emailnotrequired( obj, eMailObj, entered )
{
	with( eMailObj )
	{
		if( value==null || value=="" )
		{
			return true;
		}
		apos = value.indexOf("@");
		dotpos = value.lastIndexOf(".");
		lastpos = value.length-1;
		if( apos<1 || dotpos-apos<2 || lastpos-dotpos>3 || lastpos-dotpos<2 )
		{
			alert( "The e-mail address you entered is not valid." );
			return false;
		}
		else
		{
			return true;
		}
	}
	return true;
}