/***********************************************************************************************

	Copyright (c) 2005 - Alf Magne Kalleland post@dhtmlgoodies.com

	UPDATE LOG:

	March, 10th, 2006 : Added support for a message while large image is loading

	Get this and other scripts at www.dhtmlgoodies.com

	You can use this script freely as long as this copyright message is kept intact.

	***********************************************************************************************/

	var displayWaitMessage=true;	// Display a please wait message while images are loading?
    var novoDetalheAnuncio = false;
    var activeImage = false;
	var imageGalleryLeftPos = false;
	var imageGalleryWidth = false;
	var imageGalleryObj = false;
	var maxGalleryXPos = false;
	var slideSpeed = 0;
	var imageGalleryCaptions = new Array();

    function startSlide(e) {
		if(document.all)e = event;
		this.getElementsByTagName('IMG')[0].src = '/comum/imagens/' + this.id + '_over.gif';
		if(this.id=='arrow_right'){
			slideSpeedMultiply = Math.floor((e.clientX - this.offsetLeft) / 5);
			slideSpeed = -1*slideSpeedMultiply;
			slideSpeed = Math.max(-10,slideSpeed);
		}else{
			slideSpeedMultiply = 10 - Math.floor((e.clientX - this.offsetLeft) / 5);
			slideSpeed = 1*slideSpeedMultiply;
			slideSpeed = Math.min(10,slideSpeed);
			if(slideSpeed<0)slideSpeed=10;
		}
	}

	function releaseSlide() {
		this.getElementsByTagName('IMG')[0].src = '/comum/imagens/' + this.id + '.gif';
		slideSpeed=0;
	}

	function gallerySlide() {
		if(slideSpeed!=0){
			var leftPos = imageGalleryObj.offsetLeft;
			leftPos = leftPos + slideSpeed;
			if(leftPos>maxGalleryXPos){
				leftPos = maxGalleryXPos;
				slideSpeed = 0;
			}
			if(leftPos<minGalleryXPos){
				leftPos = minGalleryXPos;
				slideSpeed=0;
			}
			imageGalleryObj.style.left = leftPos + 'px';
		}
		setTimeout('gallerySlide()',30);

	}

	function showImage() {
		activeImage = this;
	}

	function initSlideShow(novodetalhe) {

		novoDetalheAnuncio = novodetalhe != 'undefined' && novodetalhe;
        imageGalleryObj = document.getElementById('theImages');
		imageGalleryLeftPos = imageGalleryObj.offsetLeft;
		imageGalleryWidth = document.getElementById('galleryContainer').offsetWidth - 23;
		maxGalleryXPos = imageGalleryObj.offsetLeft;
		minGalleryXPos = imageGalleryWidth - document.getElementById('slideEnd').offsetLeft;

        if(novoDetalheAnuncio){
            checkImagePosition(document.getElementById('previewPane').getElementsByTagName('IMG')[0]);
        }

        var slideshowImages = imageGalleryObj.getElementsByTagName('IMG');
		if(!novoDetalheAnuncio || (novoDetalheAnuncio && slideshowImages.length >= 5)){
            initSlideShowMouseEvents();
        }
        for(var no=0;no<slideshowImages.length;no++){
			slideshowImages[no].onmouseover = showImage;
		}

		var divs = imageGalleryObj.getElementsByTagName('DIV');
		for(var no=0;no<divs.length;no++){
			if(divs[no].className=='imageCaption')imageGalleryCaptions[imageGalleryCaptions.length] = divs[no].innerHTML;
		}
		gallerySlide();
	}

	function showPreview(imagePath,imageIndex){
		var subImages = document.getElementById('previewPane').getElementsByTagName('IMG');
		if(subImages.length==0){
			var img = document.createElement('IMG');
			document.getElementById('previewPane').appendChild(img);
		}else img = subImages[0];

		if(displayWaitMessage){
			document.getElementById('waitMessage').style.display='inline';
		}

		img.onload = function() {
            document.getElementById('waitMessage').style.display='none';
            if(novoDetalheAnuncio){
                checkImagePosition(img);
            }
        };

		img.src = imagePath;

	}

    function initSlideShowMouseEvents(){
        document.getElementById('arrow_left').onmousemove = startSlide;
		document.getElementById('arrow_left').onmouseout = releaseSlide;
		document.getElementById('arrow_right').onmousemove = startSlide;
		document.getElementById('arrow_right').onmouseout = releaseSlide;
    }

    function checkImagePosition(imgObj){
        if(imgObj.width < 520){
            imgObj.style.display = "block";
            imgObj.style.margin = "0 auto"
        } else {
            imgObj.style.margin = 0;
        }
        if(imgObj.height < 420){
            imgObj.style.padding = parseInt((420 - imgObj.height) / 2) + "px 0";
        } else {
            imgObj.style.padding = 0;
        }
    }

    function changePosition(iccpaginaatual){
        var pagina = parseInt(iccpaginaatual);
        var position = -(iccpaginaatual*50);
        if (pagina!=0 && pagina > 4){
            document.getElementById('theImages').style.left=position+'px';
        }
    }