function explode( delimiter, string )
{
    var emptyArray = { 0: '' };
    if ( arguments.length != 2 || typeof arguments[0] == 'undefined' || typeof arguments[1] == 'undefined' )
    {
        return null;
    }
    if ( delimiter === '' || delimiter === false || delimiter === null )
    {
        return false;
    }
    if ( typeof delimiter == 'function' || typeof delimiter == 'object' || typeof string == 'function' || typeof string == 'object' )
    {
        return emptyArray;
    }
    if ( delimiter === true )
    {
        delimiter = '1';
    }
    return string.toString().split ( delimiter.toString() );
}

function displayText(id)
{
    if(document.getElementById(id).value == document.getElementById(id).title)
    {
        document.getElementById(id).value = "";
    }
    else
    {
        if(trim(document.getElementById(id).value) == "")
        {
            document.getElementById(id).value = document.getElementById(id).title;
        }
        else
        {
            document.getElementById(id).value = trim(document.getElementById(id).value);
        }
    }
}

function trim(sInString)
{
    sInString = sInString.replace(/ /g,' ');
    return sInString.replace(/(^\s+)|(\s+$)/g, '');
}

function show_close(val)
{
    if(val=='show')
    {
        document.getElementById('feedback_show').style.display = 'block';
        document.getElementById('feedback_close').style.display = 'none';
        setCookie('feedback', 'show');
    }
    else
    {
        document.getElementById('feedback_show').style.display = 'none';
        document.getElementById('feedback_close').style.display = 'block';
        setCookie('feedback', 'hide');
    }
}

function all_props(obj)
{
    var result = "";
    for (var i in obj)
    {
        result += i + " = " + obj[i] + ";<br>";
    }
    return result;
}