$(document).ready ( function ()
{
    // Slide effect
    var _parentSlide   = 'div.slide-block';
    var _linkSlide     = 'a.open-close';
    var _slideBlock    = 'div.drop-block';
    var _openClassS    = 'active-block';
    var _textOpenS     = 'Open block';
    var _textCloseS    = 'Close block';
    var _durationSlide = 500;

    $(_parentSlide).each(function()
	{
		if (!$(this).is('.'+_openClassS)) {
			$(this).find(_slideBlock).css('display','none');
		}
    });
    $(_linkSlide,_parentSlide).click ( function()
	{
		if ($(this).parents(_parentSlide).is('.'+_openClassS))
		{
			$(this).parents(_parentSlide).removeClass(_openClassS);
			$(this).parents(_parentSlide).find(_slideBlock).slideUp(_durationSlide);
			$(this).text(_textOpenS);
		}
		else
		{
			$(this).parents(_parentSlide).addClass(_openClassS);
			$(this).parents(_parentSlide).find(_slideBlock).slideDown(_durationSlide);
			$(this).text(_textCloseS);
		}
		return false;
    });
    
});