/*

   proScroll v0.1 (18.12.2008)
   plugin for jQuery
   (c) http://developing.name/, http://otpro.ru/

   using: <div id="scrolling"></div>

   изменён мною для luxury

*/

(function($) {

	$.fn.scroll = function(options) {

		options = $.extend({
			width: 700,
			height: 200,
			widthbar: 13,
			speed: 5000,

			btnup: "/images/site/st-up.gif",
			btndn: "/images/site/st-down.gif",

			bartop: "/images/scroll/btn1.png",
			barmiddle: "/images/scroll/btn2.png",
			barbottom: "/images/scroll/btn3.png",

			dragbar: "/images/scroll/dragbar.gif",

			divstyle: ""

		}, options);

		var divpos = $(this).position().top;

    	bar = '<table cellpadding="0" cellspacing="0" width="100%" height="100%" border="0" id="barheight">';
    	bar+= '<tr><td height="4" style="background: url('+options.bartop+') no-repeat;"></td></tr>';
    	bar+= '<tr><td style="background: url('+options.barmiddle+') repeat-y;"></td></tr>';
    	bar+= '<tr><td height="4" style="background: url('+options.barbottom+') no-repeat;"></td></tr>';
    	bar+= '</table>';

		scrollbar = '<a href="" id="srolling_up"><img src="'+options.btnup+'" border="0"></a>';
		scrollbar+= '<a href="" id="srolling_down"><img src="'+options.btndn+'" border="0"></a>';


		divscroll = '<table border="0" cellpadding="0" cellspacing="0" width="'+options.width+'" height="'+options.height+'">';
		divscroll+= '<tr><td><div style="position:relative; overflow:hidden; width:'+(options.width-options.widthbar)+'px; height:'+options.height+'px; '+options.divstyle+' ">';
		divscroll += '<div id="scrolling_content" style="position:absolute; left:0px; top:0px; visibility: visible;">' + $(this).html() + '</div></div></td></tr></table>' + scrollbar;

		$(this).replaceWith(divscroll);

		var textheight = parseInt($("#scrolling_content").innerHeight());

		var texttop = options.height-textheight;
		texttop = (texttop<0?texttop:0);

		var barheight = 8;
		var barbutton = 15;

		var barmax = options.height-barbutton*2;
		var barmove = false;

		if (textheight>options.height)
		{
			barcur = barmax*options.height/textheight;
		} else {
			barcur = barmax;
		}

		var bartop = barmax-barcur;

		if (bartop>barmax)
		{
			bartop=barmax-barheight;
		}

		$("#barheight").css({
			'height' : barcur
		});


		$(".ntitle #srolling_down").bind("mouseover", function(e) {
			if (!barmove)
			{
			    $("#barheight").animate({ marginTop: bartop + "px" }, options.speed)
			    $(".ntitle #scrolling_content").animate({ "top": texttop + "px" }, options.speed);
			}
		});


		$(".ntitle #srolling_up").bind("mouseover", function(e) {
			if (!barmove)
			{
			    $("#barheight").animate({ marginTop: "0px" }, options.speed);
			    $(".ntitle #scrolling_content").animate({ "top": "0px" }, options.speed);
			}
		});

        $(".cnt #srolling_down, .bnews #srolling_down").bind("mouseover", function(e) {
			if (!barmove)
			{
			    $("#barheight").animate({ marginTop: bartop + "px" }, options.speed)
			    $(".cnt #scrolling_content, .bnews #scrolling_content").animate({ "top": texttop + "px" }, options.speed);
			}
		});


		$(".cnt #srolling_up, .bnews #srolling_up").bind("mouseover", function(e) {
			if (!barmove)
			{
			    $("#barheight").animate({ marginTop: "0px" }, options.speed);
			    $(".cnt #scrolling_content, .bnews #scrolling_content").animate({ "top": "0px" }, options.speed);
			}
		});

		$(".ntitle #srolling_down,.ntitle #srolling_up").bind("mouseout", function(e) {
			if (!barmove)
			{
				$(".ntitle #scrolling_content").stop();
				$("#barheight").stop();
			}
		});

        $(".cnt #srolling_down,.cnt #srolling_up, .bnews #srolling_down, .bnews #srolling_up").bind("mouseout", function(e) {
			if (!barmove)
			{
				$(".cnt #scrolling_content, .bnews #scrolling_content").stop();
				$("#barheight").stop();
			}
		});

		$("#srolling_down, #srolling_up").bind("click", function(e) {
			return false;
		});


		$("#barheight").bind("mousedown", function(e) {

			barcurtop = parseInt($("#barheight").css('marginTop'));
			barcurtop = (isNaN(barcurtop)?0:barcurtop);
			barcurtop = (e.pageY-divpos-barbutton)-barcurtop;

			$("body").bind("mousemove", function(e) {

				barmove = true;
				_margintop = (e.pageY-divpos-30)-barcurtop;

				if (_margintop>bartop)
				{
					_margintop = bartop;
				}
				else if (_margintop<0)
				{
					_margintop=0;
				}

				$("#barheight").css({
					marginTop: _margintop
				});

				_margintop = _margintop*texttop/bartop;

				$("#scrolling_content").css({
					"top": _margintop
				});

				$("body").one("mouseup", function(e) {
					$("body").unbind("mousemove");
					barmove = false;
				});

				return false;
			});
			return false;
		});

	}

})(jQuery);