function tv_check_search (form, defaultText)
{
	searchinput = tv_strip_illegal_characters( form.s.value );

	if (searchinput == '' || searchinput == '&#' || searchinput == defaultText)
		return false;

	form.s.value = searchinput;
	
	return true;
}

function tv_strip_illegal_characters ( val )
{
	var invalidchars = "<>\/\"";
	for (output='', x=0; x < val.length; x++)
	{
		if ( invalidchars.indexOf( val.charAt(x) ) == -1 )
			output += val.charAt(x)
	}
	return output;
}