/***********************************************
* Ultimate Fade-In Slideshow (v1.5): © Dynamic Drive (http://www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit http://www.dynamicdrive.com/ for this script and 100s more.
***********************************************/
 
var fadeimages 	= new Array();
fadeimages[0]	= ["img/imgBannerDicas/bannerDicas1.jpg", "usuario_receitas_saladas_01.html", "Receitas - Salada verão", "Se você quiser um alimento mais refrescante, aprenda..."];
fadeimages[1]	= ["img/imgBannerDicas/bannerDicas2.jpg", "usuario_dicasnutritivas_02.html", "Chocolate no calor faz mal?", "A 'oitava maravilha do mundo'. Assim como é visto o..."];
fadeimages[2]	= ["img/imgBannerDicas/bannerDicas3.jpg", "usuario_receitas_sobremesas_01.html", "Receitas - Creme de café light", "Depois de uma refeição, experimente essa deliciosa..."];
fadeimages[3]	= ["img/imgBannerDicas/bannerDicas4.jpg", "usuario_dicasdesaude_02.html", "Dicas de saúde - De olho no melanoma", "O melanoma se manifesta com a forma de pintas escuras..."];
fadeimages[4]	= ["img/imgBannerDicas/bannerDicas5.jpg", "usuario_dicasnutritivas_01.html", "Dicas de saúde - Frutas, use e abuse", "Ricas em vitaminas, sais minerais, fibras e..."];
 
var fadebgcolor	= "white";
var fadearray 	= new Array(); //array to cache fadeshow instances
var fadeclear 	= new Array(); //array to cache corresponding clearinterval pointers
var dom 		= (document.getElementById); //modern dom browsers
var iebrowser	= document.all;


//new fadeshow(IMAGES_ARRAY_NAME, slideshow_width, slideshow_height, borderwidth, delay, pause (0=no, 1=yes), optionalRandomOrder) 
function fadeshow(theimages, fadewidth, fadeheight, borderwidth, delay, pause, displayorder){
	this.pausecheck				= pause;
	this.mouseovercheck			= 0;
	this.delay					= delay;
	this.degree					= 10; //initial opacity degree (10%)
	this.curimageindex			= 0;
	this.nextimageindex			= 1;
	fadearray[fadearray.length]	= this;
	this.slideshowid			= fadearray.length-1;
	this.canvasbase				= "canvas"+this.slideshowid;
	this.curcanvas				= this.canvasbase+"_0";
	
	if (typeof displayorder != "undefined") {
		theimages.sort(function() { return 0.5 - Math.random(); }) //thanks to Mike (aka Mwinter) :)
	}
	
	this.theimages				= theimages;
	this.imageborder			= parseInt(borderwidth);
	this.postimages				= new Array(); //preload images
	
	for (p=0; p<theimages.length; p++){
		this.postimages[p]		= new Image();
		this.postimages[p].src	= theimages[p][0];
	}
	 
	var fadewidth	= fadewidth  + this.imageborder * 2;
	var fadeheight	= fadeheight + this.imageborder * 2;
	 
	if (iebrowser && dom || dom) { //if IE5+ or modern browsers (ie: Firefox)
	//if (dom) { // ***Alterado*** Caso haja erro posterior, comente esta linha e descomente a linha acima
		document.write('<div id="master'+ this.slideshowid +'" style="position:relative; width:'+ fadewidth +'px; height:'+ fadeheight +'px; overflow:hidden;">' + '\n' +
						 '<div id="'+ this.canvasbase +'_0" style="position:absolute; width:'+ fadewidth +'px; height:'+ fadeheight +'px; top:0px; left:0px; filter:alpha(opacity=10); -moz-opacity:10; -khtml-opacity:10; background-color:'+ fadebgcolor +'"><\/div>' + '\n' +
						 '<div id="'+ this.canvasbase +'_1" style="position:absolute; width:'+ fadewidth +'px; height:'+ fadeheight +'px; top:0px; left:0px; filter:alpha(opacity=10); -moz-opacity:10; background-color:'+ fadebgcolor +'"><\/div>' + '\n' +
					   '<\/div>');
	} else {
		document.write('<img name="defaultslide'+ this.slideshowid +'" src="'+ this.postimages[0].src +'" \/>');
	}
	
	if (iebrowser&&dom||dom) { //if IE5+ or modern browsers such as Firefox
		this.startit();
	} else {
		this.curimageindex++;
		setInterval("fadearray["+this.slideshowid+"].rotateimage()", this.delay);
	}
}

function fadepic(obj){
	if (obj.degree<100) {
		obj.degree += 10;
		if (obj.tempobj.filters&&obj.tempobj.filters[0]) {
			if (typeof obj.tempobj.filters[0].opacity == "number") { //if IE6+
				obj.tempobj.filters[0].opacity = obj.degree;
			} else { //else if IE5.5-
				obj.tempobj.style.filter	= "alpha(opacity="+obj.degree+")";
			}
		} else if (obj.tempobj.style.MozOpacity) {
			obj.tempobj.style.MozOpacity 	= obj.degree/101;
		} else if (obj.tempobj.style.KhtmlOpacity) {
			obj.tempobj.style.KhtmlOpacity 	= obj.degree/100;
		}
	} else {
		clearInterval(fadeclear[obj.slideshowid]);
		obj.nextcanvas=(obj.curcanvas==obj.canvasbase+"_0")? obj.canvasbase+"_0" : obj.canvasbase+"_1";
		obj.tempobj=iebrowser? iebrowser[obj.nextcanvas] : document.getElementById(obj.nextcanvas);
		obj.populateslide(obj.tempobj, obj.nextimageindex);
		obj.nextimageindex=(obj.nextimageindex<obj.postimages.length-1)? obj.nextimageindex+1 : 0;
		setTimeout("fadearray["+obj.slideshowid+"].rotateimage()", obj.delay);
	}
}
 
// Caso a imagem receba algum link, ele será tratado aqui
fadeshow.prototype.populateslide = function(picobj, picindex){ 
	var slideHTML 	= "";
	if (this.theimages[picindex][1]!="") { //if associated link exists for image
		slideHTML	= '<a href="'+ this.theimages[picindex][1] +'">';
	}
	
	slideHTML		+= '<img src="'+ this.postimages[picindex].src +'" alt="'+ this.theimages[picindex][2] +'" border="'+ this.imageborder +'" \/>' + '\n' +
					   '<span class="texto">'+ this.theimages[picindex][3] +'<\/span>';
	
	if (this.theimages[picindex][1]!="") { //if associated link exists for image
		slideHTML	+= '<\/a>';
	}
	picobj.innerHTML= slideHTML;
}

// Caso o mouse esteja sobre a imagem, o slide irá pausar
fadeshow.prototype.rotateimage = function(){
	if (this.pausecheck==1) { //if pause onMouseover enabled, cache object
		var cacheobj = this;
		if (this.mouseovercheck==1) {
			setTimeout(function(){cacheobj.rotateimage()}, 100);
		} else if (iebrowser&&dom||dom) {
			this.resetit();
			var crossobj = this.tempobj = iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
			crossobj.style.zIndex++;
			fadeclear[this.slideshowid]	= setInterval("fadepic(fadearray["+this.slideshowid+"])",50);
			this.curcanvas = (this.curcanvas==this.canvasbase+"_0")? this.canvasbase+"_1" : this.canvasbase+"_0";
		}
	} else {
		var ns4imgobj	= document.images['defaultslide'+this.slideshowid];
		ns4imgobj.src	= this.postimages[this.curimageindex].src;
	}
	this.curimageindex	= (this.curimageindex<this.postimages.length-1)? this.curimageindex+1 : 0;
}
 
 
fadeshow.prototype.resetit = function(){
	this.degree  = 10;
	var crossobj = iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
	if (crossobj.filters&&crossobj.filters[0]){
		if (typeof crossobj.filters[0].opacity=="number") { //if IE6+
			crossobj.filters(0).opacity = this.degree;
		} else { //else if IE5.5-
			crossobj.style.filter		= "alpha(opacity="+ this.degree +")";
		}
	} else if (crossobj.style.MozOpacity) {
		crossobj.style.MozOpacity 	= this.degree/101;
	} else if (crossobj.style.KhtmlOpacity) {
		crossobj.style.KhtmlOpacity	= obj.degree/100;
	}
}


fadeshow.prototype.startit = function(){
	var crossobj = iebrowser? iebrowser[this.curcanvas] : document.getElementById(this.curcanvas);
	this.populateslide(crossobj, this.curimageindex);
	if (this.pausecheck==1) { //IF SLIDESHOW SHOULD PAUSE ONMOUSEOVER
		var cacheobj = this;
		var crossobjcontainer = iebrowser? iebrowser["master"+this.slideshowid] : document.getElementById("master"+this.slideshowid);
		crossobjcontainer.onmouseover = function(){ cacheobj.mouseovercheck = 1 }
		crossobjcontainer.onmouseout = function(){ cacheobj.mouseovercheck = 0 }
	}
	this.rotateimage();
}