/**
* author Remy Sharp
* url http://remysharp.com/tag/marquee
*/

(function ($) {
    $.fn.marquee = function (klass) {
        var newMarquee = [],
            last = this.length;

        // works out the left or right hand reset position, based on scroll
        // behavior, current direction and new direction
        function getReset(newDir, marqueeRedux, marqueeState) {
            var behavior = marqueeState.behavior, width = marqueeState.width, dir = marqueeState.dir;
            var r = 0;
            if (behavior == 'alternate') {
                r = newDir == 1 ? marqueeRedux[marqueeState.widthAxis] - (width*2) : width;
            } else if (behavior == 'slide') {
                if (newDir == -1) {
                    r = dir == -1 ? marqueeRedux[marqueeState.widthAxis] : width;
                } else {
                    r = dir == -1 ? marqueeRedux[marqueeState.widthAxis] - (width*2) : 0;
                }
            } else {
                r = newDir == -1 ? marqueeRedux[marqueeState.widthAxis] : 0;
            }
            return r;
        }

        // single "thread" animation
        function animateMarquee() {
            var i = newMarquee.length,
                marqueeRedux = null,
                $marqueeRedux = null,
                marqueeState = {},
                newMarqueeList = [],
                hitedge = false;
                
            while (i--) {
                marqueeRedux = newMarquee[i];
                $marqueeRedux = $(marqueeRedux);
                marqueeState = $marqueeRedux.data('marqueeState');
                
                if ($marqueeRedux.data('paused') !== true) {
                    // TODO read scrollamount, dir, behavior, loops and last from data
                    marqueeRedux[marqueeState.axis] += (marqueeState.scrollamount * marqueeState.dir);

                    // only true if it's hit the end
                    hitedge = marqueeState.dir == -1 ? marqueeRedux[marqueeState.axis] <= getReset(marqueeState.dir * -1, marqueeRedux, marqueeState) : marqueeRedux[marqueeState.axis] >= getReset(marqueeState.dir * -1, marqueeRedux, marqueeState);
                    
                    if ((marqueeState.behavior == 'scroll' && marqueeState.last == marqueeRedux[marqueeState.axis]) || (marqueeState.behavior == 'alternate' && hitedge && marqueeState.last != -1) || (marqueeState.behavior == 'slide' && hitedge && marqueeState.last != -1)) {                        
                        if (marqueeState.behavior == 'alternate') {
                            marqueeState.dir *= -1; // flip
                        }
                        marqueeState.last = -1;

                        $marqueeRedux.trigger('stop');

                        marqueeState.loops--;
                        if (marqueeState.loops === 0) {
                            if (marqueeState.behavior != 'slide') {
                                marqueeRedux[marqueeState.axis] = getReset(marqueeState.dir, marqueeRedux, marqueeState);
                            } else {
                                // corrects the position
                                marqueeRedux[marqueeState.axis] = getReset(marqueeState.dir * -1, marqueeRedux, marqueeState);
                            }

                            $marqueeRedux.trigger('end');
                        } else {
                            // keep this marquee going
                            newMarqueeList.push(marqueeRedux);
                            $marqueeRedux.trigger('start');
                            marqueeRedux[marqueeState.axis] = getReset(marqueeState.dir, marqueeRedux, marqueeState);
                        }
                    } else {
                        newMarqueeList.push(marqueeRedux);
                    }
                    marqueeState.last = marqueeRedux[marqueeState.axis];

                    // store updated state only if we ran an animation
                    $marqueeRedux.data('marqueeState', marqueeState);
                } else {
                    // even though it's paused, keep it in the list
                    newMarqueeList.push(marqueeRedux);                    
                }
            }

            newMarquee = newMarqueeList;
            
            if (newMarquee.length) {
                setTimeout(animateMarquee, 25);
            }            
        }
        
        // TODO consider whether using .html() in the wrapping process could lead to loosing predefined events...
        this.each(function (i) {
            var $marquee = $(this),
                width = $marquee.attr('width') || $marquee.width(),
                height = $marquee.attr('height') || $marquee.height(),
                $marqueeRedux = $marquee.after('<div ' + (klass ? 'class="' + klass + '" ' : '') + 'style="display: block-inline; width: ' + width + 'px; height: ' + height + 'px; overflow: hidden;"><div style="float: left; white-space: nowrap;">' + $marquee.html() + '</div></div>').next(),
                marqueeRedux = $marqueeRedux.get(0),
                hitedge = 0,
                direction = ($marquee.attr('direction') || 'left').toLowerCase(),
                marqueeState = {
                    dir : /down|right/.test(direction) ? -1 : 1,
                    axis : /left|right/.test(direction) ? 'scrollLeft' : 'scrollTop',
                    widthAxis : /left|right/.test(direction) ? 'scrollWidth' : 'scrollHeight',
                    last : -1,
                    loops : $marquee.attr('loop') || -1,
                    scrollamount : $marquee.attr('scrollamount') || this.scrollAmount || 2,
                    behavior : ($marquee.attr('behavior') || 'scroll').toLowerCase(),
                    width : /left|right/.test(direction) ? width : height
                };
            
            // corrects a bug in Firefox - the default loops for slide is -1
            if ($marquee.attr('loop') == -1 && marqueeState.behavior == 'slide') {
                marqueeState.loops = 1;
            }

            $marquee.remove();
            
            // add padding
            if (/left|right/.test(direction)) {
                $marqueeRedux.find('> div').css('padding', '0 ' + width + 'px');
            } else {
                $marqueeRedux.find('> div').css('padding', height + 'px 0');
            }
            
            // events
            $marqueeRedux.bind('stop', function () {
                $marqueeRedux.data('paused', true);
            }).bind('pause', function () {
                $marqueeRedux.data('paused', true);
            }).bind('start', function () {
                $marqueeRedux.data('paused', false);
            }).bind('unpause', function () {
                $marqueeRedux.data('paused', false);
            }).data('marqueeState', marqueeState); // finally: store the state
            
            // todo - rerender event allowing us to do an ajax hit and redraw the marquee

            newMarquee.push(marqueeRedux);

            marqueeRedux[marqueeState.axis] = getReset(marqueeState.dir, marqueeRedux, marqueeState);
            $marqueeRedux.trigger('start');
            
            // on the very last marquee, trigger the animation
            if (i+1== last) {
                animateMarquee();
            }
        });            

        return $(newMarquee);
    };
}(jQuery));

    $(function () {
        // basic version is: $('div.demo marquee').marquee() - but we're doing some sexy extras
        
        $('#ticker marquee').marquee('pointer').mouseover(function () {
            $(this).trigger('stop');
        }).mouseout(function () {
            $(this).trigger('start');
        }).mousemove(function (event) {
            if ($(this).data('drag') == true) {
                this.scrollLeft = $(this).data('scrollX') + ($(this).data('x') - event.clientX);
            }
        }).mousedown(function (event) {
            $(this).data('drag', true).data('x', event.clientX).data('scrollX', this.scrollLeft);
        }).mouseup(function () {
            $(this).data('drag', false);
        });
    });

function getPageSize(){
	
	var xScroll, yScroll;
	
	if (window.innerHeight && window.scrollMaxY) {	
		xScroll = document.body.scrollWidth;
		yScroll = window.innerHeight + window.scrollMaxY;
	} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
		xScroll = document.body.scrollWidth;
		yScroll = document.body.scrollHeight;
	} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
		xScroll = document.body.offsetWidth;
		yScroll = document.body.offsetHeight;
	}
	
	var windowWidth, windowHeight;
	if (self.innerHeight) {	// all except Explorer
		windowWidth = self.innerWidth;
		windowHeight = self.innerHeight;
	} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
		windowWidth = document.documentElement.clientWidth;
		windowHeight = document.documentElement.clientHeight;
	} else if (document.body) { // other Explorers
		windowWidth = document.body.clientWidth;
		windowHeight = document.body.clientHeight;
	}	
	
	// for small pages with total height less then height of the viewport
	if(yScroll < windowHeight){
		pageHeight = windowHeight;
	} else { 
		pageHeight = yScroll;
	}

	// for small pages with total width less then width of the viewport
	if(xScroll < windowWidth){	
		pageWidth = windowWidth;
	} else {
		pageWidth = xScroll;
	}


	arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight) 
	return arrayPageSize;
}
var pirmas = 1;

function moveAdvert(amount,w,greitis) {
	
	var pageArray = getPageSize();
	for (i=1; i<=amount; i++) {
		
				if (pirmas==1) document.getElementById("advertImg"+i).style.left = document.getElementById("advertImg"+i).style.left + (w*(i-1)-greitis) + "px";
				else {
					if (parseInt(document.getElementById("advertImg"+i).style.left)<=w-2*w) {
						var g = -(parseInt(document.getElementById("advertImg"+i).style.left) + w) + greitis;
						document.getElementById("advertImg"+i).style.left = ((amount-1)*w-g)+"px";
						}
					else {
						document.getElementById("advertImg"+i).style.left = parseInt(document.getElementById("advertImg"+i).style.left) - greitis +"px";
						}
					}
	}
    pirmas = 2;
	setTimeout("moveAdvert("+amount+","+w+","+greitis+")", 50);
}
	
function insertMarquee(imageFile, text, greitis, widas, heitas, nuoroda, langas) {
	
	var pageArray = getPageSize();
	var ticker = document.getElementById("ticker");
	
	if (text) {
		ticker.style.height = "23px";
		ticker.style.paddingTop = "7px";
		ticker.innerHTML = '<marquee behavior="scroll" direction="left" scrollamount="'+greitis+'" width="'+pageArray[2]+'" id="marq"><a href="'+nuoroda+'" target="'+langas+'" style="color:#FFFFFF">'+text+'</a></marquee>';
	}
	else if (imageFile) {
		var image = new Image();
		image.src = imageFile;
		
		var w = Math.round(widas*30/heitas);
		var amount = Math.round(pageArray[2]/w)+2;
		for (i=1; i<=amount; i++) {
			ticker.innerHTML = ticker.innerHTML+'<a href="'+nuoroda+'" id="advertImg'+i+'" target="'+langas+'"><img src="'+imageFile+'" border="0" height="30" /></a>';
			document.getElementById("advertImg"+i).style.position = "absolute";
		}

		ticker.style.overflow = "hidden";
		ticker.style.width = pageArray[2] + 5*w + "px";
		//setTimeout("moveAdvert("+amount+","+w+")", 300);
		moveAdvert(amount,w,greitis);
	}

	ticker.style.top = pageArray[3]-30 + 'px';
	ticker.style.position = "fixed";		
}