/*
* jScroller 0.3 - Scroller Script
*
* Copyright (c) 2007 Markus Bordihn (http://markusbordihn.de)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* $Date: 2007-11-15 13:00:00 +0100 (Thu, 15 Nov 2007) $
* $Rev: 0.3 $
*/

$(document).ready(function(){
	this.defaults = {
	scroller: {
		interval:  0,    // Dont touch !
		refresh:   150,  // Refresh Time in ms
		direction: "left", // down,right,left,up
		speed:     4,    // Set the Scroller Speed
		id:        "#scroller",
		cont_id:   "#slider"
	}
	}

	var jscroller_config = $.extend(this.defaults), jscroller_scroller = $(jscroller_config.scroller.id), jscroller_scroller_cont = $(jscroller_config.scroller.cont_id);

	if (jscroller_scroller && jscroller_scroller_cont) {
		jscroller_scroller.css({position: 'absolute', left: 0, top: 0});
		jscroller_init();
	}

	function jscroller_startScroll() {
	if(!jscroller_config.scroller.interval) {
		jscroller_config.scroller.interval=window.setInterval(jscroller_doScroll,jscroller_config.scroller.refresh);
	}
	}

	function jscroller_stopScroll() {
	if (jscroller_config.scroller.interval) {
		window.clearInterval(jscroller_config.scroller.interval);
		jscroller_config.scroller.interval=0;
	}
	}

	function jscroller_init() {
// 	$("#scroller a").click(function(){
// 		window.open(this.href);
// 		return false;
// 	});
	jscroller_scroller_cont.css('overflow','hidden');
	if(!jscroller_config.scroller.interval) {
		if (window.attachEvent) {
		window.attachEvent("onfocus", jscroller_startScroll);
		window.attachEvent("onblur",  jscroller_stopScroll);
		window.attachEvent("onresize", jscroller_startScroll);
		window.attachEvent("onscroll", jscroller_startScroll);
		}
		else if (window.addEventListener) {
		window.addEventListener("focus", jscroller_startScroll, false);
		window.addEventListener("blur",  jscroller_stopScroll, false);
		window.addEventListener("resize", jscroller_startScroll, false);
		window.addEventListener("scroll", jscroller_startScroll, false);
		}
		jscroller_startScroll();
		if ($.browser.msie) {window.focus()}
	}
	}

	function jscroller_getElem(Elem) {
	return (typeof Elem == "string" && document.getElementById)? document.getElementById(Elem) : Elem;
	}

	function jscroller_doScroll() {
	if (scroller_dom = jscroller_getElem(jscroller_scroller.attr("id"))) {
	var
		p_top= Number((/[0-9-,.]+/.exec(jscroller_scroller.css('top'))||0)),
		p_left=Number((/[0-9-,.]+/.exec(jscroller_scroller.css('left'))||0)),
		min_height=jscroller_scroller_cont.height(),
		min_width=jscroller_scroller_cont.width(),
		speed=jscroller_config.scroller.speed,
		p_height=scroller_dom.offsetHeight,
		p_width=scroller_dom.offsetWidth,
		direction=jscroller_config.scroller.direction,
		jscroller=jscroller_scroller;

	switch(direction) {
		case 'up':
		if (p_top <= -1*p_height) {p_top=min_height;}
		jscroller.css('top',p_top-speed+'px');
		break;
		case 'right':
		if (p_left >= min_width) {p_left=-1*p_width;}
		jscroller.css('left',p_left+speed+'px');
		break;
		case 'left':
		if (p_left <= -1*p_width) {p_left=min_width;}
		jscroller.css('left',p_left-speed+'px');
		break;
		case 'down':
		if (p_top >= min_height) {p_top=-1*p_height;}
		jscroller.css('top',p_top+speed+'px');
		break;
	}
	}
	}
});