//galeria de imagens home
var xm = 0;
var ym = 0;

document.onmousemove = function(e){
	if (window.event) e=window.event;
	xm = e.clientX;
	ym = e.clientY;
}

var panel = {
	speed : .002,
	t : 0,
	O : [],
	over : false,

	run : function() {
		panel.t += panel.speed;
		for (var i = 0, o; o = panel.O[i]; i++)
			o.anim(i + panel.t);
	},

	init : function(){
		for (var i = 0, o; o = document.images[i]; i++){
			if (o.className.indexOf('panel') >= 0) {
				var div = document.createElement("div");
				div.className = 'panel';
				var img = document.createElement("img");
				img.src = o.src;
				img.className = 'imgPanel';
				o.parentNode.replaceChild(div,o);
				div.appendChild(img);
				div.ims = img.style;
				div.iw = img.width;
				div.ih = img.height;
				div.cx = -div.iw / 6;
				div.cy = -div.ih / 6;
				div.anim = function(t) {
					nw = this.offsetWidth;
					nh = this.offsetHeight;
					if (panel.over == this){
						for (var nx = 0, ny = 0, o = this; o != null; o = o.offsetParent) nx += o.offsetLeft, ny += o.offsetTop;
						var x = Math.max(-this.iw + nw, Math.min(0, (-(xm - nx) * (this.iw - nw)) / nw));
						var y = Math.max(-this.ih + nh, Math.min(0, (-(ym - ny) * (this.ih - nh)) / nh));
						if (Math.abs(xm-nx-nw * .1) > nw || Math.abs(ym-ny-nh * .1) > nw ) panel.over = false;
					} else {
						var mx = (this.iw - nw) * .3;
						var my = (this.ih - nh) * .3;
						var x = -mx * (1 + Math.cos(t * 1.2));
						var y = -my * (1 + Math.sin(t));
					}
					this.cx += (x - this.cx) * .5;
					this.cy += (y - this.cy) * .5;
					this.ims.left = Math.round(this.cx) + 'px';
					this.ims.top  = Math.round(this.cy) + 'px';
				}

				div.onmouseover = function()
				{
					panel.over = this;
				}
				this.O.push(div);
			}
		}
		setInterval(panel.run, 32);
	}
}


onload = function ()
{
	panel.init();
}


//galeria de imagens interna



	var opacitySpeed = 2;	// Speed of opacity - switching between large images - Lower = faster
	var opacitySteps = 10; 	// Also speed of opacity - Higher = faster
	var slideSpeed = 5;	// Speed of thumbnail slide - Lower = faster
	var slideSteps = 8;	// Also speed of thumbnail slide - Higher = faster
	var columnsOfThumbnails = 7;	// Hardcoded number of thumbnail columns, use false if you want the script to figure it out dynamically.

	/* Don't change anything below here */
	var DHTMLgoodies_largeImage = false;
	var DHTMLgoodies_imageToShow = false;
	var DHTMLgoodies_currentOpacity = 100;
	var DHTMLgoodies_slideWidth = false;
	var DHTMLgoodies_thumbTotalWidth = false;
	var DHTMLgoodies_viewableWidth = false;

	var currentUnqiueOpacityId = false;
	var DHTMLgoodies_currentActiveImage = false;
	var DHTMLgoodies_thumbDiv = false;
	var DHTMLgoodies_thumbSlideInProgress = false;

	var browserIsOpera = navigator.userAgent.indexOf('Opera')>=0?true:false;
	var leftArrowObj;
	var rightArrowObj;
	var thumbsColIndex = 1;
	var thumbsLeftPos = false;

	function initGalleryScript()
	{
		leftArrowObj = document.getElementById('DHTMLgoodies_leftArrow');
		leftArrowObj.style.visibility='hidden';
		rightArrowObj = document.getElementById('DHTMLgoodies_rightArrow');
		leftArrowObj.style.cursor = 'pointer';
		rightArrowObj.style.cursor = 'pointer';
		leftArrowObj.onclick = moveThumbnails;
		rightArrowObj.onclick = moveThumbnails;
		DHTMLgoodies_largeImage = document.getElementById('DHTMLgoodies_largeImage').getElementsByTagName('IMG')[0];
		var innerDiv = document.getElementById('DHTMLgoodies_thumbs_inner');
		DHTMLgoodies_slideWidth = innerDiv.getElementsByTagName('DIV')[0].offsetWidth;
		DHTMLgoodies_thumbDiv = document.getElementById('DHTMLgoodies_thumbs_inner');
		DHTMLgoodies_thumbDiv.style.left = '0px';

		var subDivs = DHTMLgoodies_thumbDiv.getElementsByTagName('DIV');
		DHTMLgoodies_thumbTotalWidth = 0;
		var tmpLeft = 0;
		for(var no=0;no<subDivs.length;no++){
			if(subDivs[no].className=='strip_of_thumbnails'){
				DHTMLgoodies_thumbTotalWidth = DHTMLgoodies_thumbTotalWidth + DHTMLgoodies_slideWidth;
				subDivs[no].style.left = tmpLeft + 'px';
				subDivs[no].style.top = '0px';
				tmpLeft = tmpLeft + subDivs[no].offsetWidth;
			}
		}

		DHTMLgoodies_viewableWidth = document.getElementById('DHTMLgoodies_thumbs').offsetWidth;


		DHTMLgoodies_currentActiveImage = DHTMLgoodies_thumbDiv.getElementsByTagName('A')[0].getElementsByTagName('IMG')[0];
		DHTMLgoodies_currentActiveImage.className='activeImage';
	}

	function moveThumbnails()
	{
		if(DHTMLgoodies_thumbSlideInProgress)return;
		DHTMLgoodies_thumbSlideInProgress = true;
		if(this.id=='DHTMLgoodies_leftArrow'){
			thumbsColIndex--;
			rightArrowObj.style.visibility='visible';
			if(DHTMLgoodies_thumbDiv.style.left.replace('px','')/1>=0){
				leftArrowObj.style.visibility='hidden';
				DHTMLgoodies_thumbSlideInProgress = false;
				return;
			}

			slideThumbs(slideSteps,0);

		}else{
			thumbsColIndex++;
			leftArrowObj.style.visibility='visible';
			var left = DHTMLgoodies_thumbDiv.style.left.replace('px','')/1;
			var showArrow = true;
			if(DHTMLgoodies_thumbTotalWidth + left - DHTMLgoodies_slideWidth <= DHTMLgoodies_viewableWidth)showArrow = false;
			if(columnsOfThumbnails)showArrow = true;

			if(!showArrow)
			{
				rightArrowObj.style.visibility='hidden';
				DHTMLgoodies_thumbSlideInProgress = false;
				return;
			}

			slideThumbs((slideSteps*-1),0);
		}

	}

	function slideThumbs(speed,currentPos)
	{
		var leftPos;
		if(thumbsLeftPos){
			leftPos= thumbsLeftPos;
		}else{
			var leftPos = DHTMLgoodies_thumbDiv.style.left.replace('px','')/1;
			thumbsLeftPos = leftPos;
		}
		currentPos = currentPos + Math.abs(speed);
		if(currentPos> DHTMLgoodies_slideWidth){
			offset = (currentPos - DHTMLgoodies_slideWidth);
			if (speed < 0) {
				leftPos += offset;
			}else{
				leftPos -= offset;
			}
			currentPos = DHTMLgoodies_slideWidth;
		}

		var tmpLeftPos = leftPos;
		leftPos = leftPos + speed;
		thumbsLeftPos = leftPos;
		DHTMLgoodies_thumbDiv.style.left = leftPos + 'px';
		if (currentPos < DHTMLgoodies_slideWidth) {
			setTimeout('slideThumbs(' + speed + ',' + currentPos + ')', slideSpeed);
		}
		else {
			if (tmpLeftPos >= 0 || (columnsOfThumbnails && thumbsColIndex == 1)) {
				document.getElementById('DHTMLgoodies_leftArrow').style.visibility = 'hidden';
			}
			var left = tmpLeftPos;
			var showArrow = true;
			if (DHTMLgoodies_thumbTotalWidth + left - DHTMLgoodies_slideWidth <= DHTMLgoodies_viewableWidth)
				showArrow = false;
			if (columnsOfThumbnails) {
				if ((thumbsColIndex + 1) < columnsOfThumbnails)
					showArrow = true;
				else
					showArrow = false;
			}
			if (!showArrow) {
				document.getElementById('DHTMLgoodies_rightArrow').style.visibility = 'hidden';
			}
			DHTMLgoodies_thumbSlideInProgress = false;
		}

	}

	function showPreview(imagePath,inputObj)
	{
		if(DHTMLgoodies_currentActiveImage){
			if(DHTMLgoodies_currentActiveImage==inputObj.getElementsByTagName('IMG')[0])return;
			DHTMLgoodies_currentActiveImage.className='';
		}
		DHTMLgoodies_currentActiveImage = inputObj.getElementsByTagName('IMG')[0];
		DHTMLgoodies_currentActiveImage.className='activeImage';

		DHTMLgoodies_imageToShow = imagePath;
		var tmpImage = new Image();
		tmpImage.src = imagePath;
		currentUnqiueOpacityId = Math.random();
		moveOpacity(opacitySteps*-1,currentUnqiueOpacityId);
	}

	function setOpacity()
	{
		if(document.all)
		{
			DHTMLgoodies_largeImage.style.filter = 'alpha(opacity=' + DHTMLgoodies_currentOpacity + ')';
		}else{
			DHTMLgoodies_largeImage.style.opacity = DHTMLgoodies_currentOpacity/100;
		}
	}
	function moveOpacity(speed,uniqueId)
	{

		if(browserIsOpera){
			DHTMLgoodies_largeImage.src = DHTMLgoodies_imageToShow;
			return;
		}

		DHTMLgoodies_currentOpacity = DHTMLgoodies_currentOpacity + speed;
		if(DHTMLgoodies_currentOpacity<=5 && speed<0){

			var tmpParent = DHTMLgoodies_largeImage.parentNode;
			DHTMLgoodies_largeImage.parentNode.removeChild(DHTMLgoodies_largeImage);
			DHTMLgoodies_largeImage = document.createElement('IMG');
			tmpParent.appendChild(DHTMLgoodies_largeImage);
			setOpacity();
			DHTMLgoodies_largeImage.src = DHTMLgoodies_imageToShow;

			speed=opacitySteps;
		}
		if(DHTMLgoodies_currentOpacity>=99 && speed>0)DHTMLgoodies_currentOpacity=99;
		setOpacity();
		if(DHTMLgoodies_currentOpacity>=99 && speed>0)return;
		if(uniqueId==currentUnqiueOpacityId)setTimeout('moveOpacity(' + speed + ',' + uniqueId + ')',opacitySpeed);
	}