//***********************************************************************
function delItem(arr,item){
	for (;item<arr.length;item++) arr[item] = arr[item + 1];
	arr.length=arr.length-1;
}
//***********************************************************************

//***********************************************************************
function goURL() {
	//(Item[atual][3].indexOf('_parent')!=-1) ? window.open(Item[atual][3].substring(0,Item[atual][3].indexOf(' '))) : location.href=Item[atual][3];
	parent.location.href=Item[atual][3].substring(0,Item[atual][3].indexOf(' '));
}
//***********************************************************************

//***********************************************************************
function changeContent() {
	document.img1.src = imgDsp[atual].src;
	document.img1.alt = document.img1.title = Item[atual][0];
	document.getElementById('txt1').innerHTML = Item[atual][2];
	if(usaCredito!='') document.getElementById('credito').innerHTML = Item[atual][0];
	document.getElementById('icon-area').innerHTML = Item[atual][4];
}
//***********************************************************************

//***********************************************************************
function changeImg(id){
	clearTimeout(timeoutId);
	atual+=parseInt(id);
	if(atual>Item.length-1) atual = 0;
	if(atual<0) atual = Item.length-1;
	if(imgDsp[atual].complete==false) {
		atual--;
		timeoutId = setTimeout('changeImg('+id+')',500); 
		return; 
		} 
	if(document.all && navigator.userAgent.indexOf('Opera')==-1) {
		try {
			document.images.img1.style.filter='blendTrans(duration=1)';
			document.images.img1.filters.blendTrans.Apply();
			document.images.img1.filters.blendTrans.Play();
			changeContent();
			} catch(e) { changeContent(); }
		}
	else { blend(); }
	
	timeoutId = setTimeout('changeImg(1)',15000) // Controla a velocidade de exibição da imagens
}
//***********************************************************************

//***********************************************************************
function startSlide(){ 
	loadImages();
	timeoutId = setTimeout('changeImg(1)',15000); 
}
//***********************************************************************

//***********************************************************************
function loadImages(){
	imgDsp = new Array();
	for(n=0;n<Item.length;n++) {
		imgDsp[n] = new Image();
		imgDsp[n].src = Item[n][1];
		}
	okToGo = true;
}
//***********************************************************************

//***********************************************************************
function initialize(){
	timeoutId = 0;
	textareaContent = document.form_cr.select_cr.value.split(/[\r\n]/i);
	Item = new Array();
	for(x=0,y=0;x<textareaContent.length;x++) { 
		if(textareaContent[x].length>30) Item[y++] = textareaContent[x].split('|'); 
		}
	for(i=Item.length-1;i>=0;i--) { // remove arrays com informação faltando
		Item[i][0] = Item[i][0].replace(/([ \n\t\r])+/, " ");
		Item[i][4] = (Item[i][4].length<3) ? '' : '<img src="'+Item[i][4]+'" border="0" style="margin-right:4px;">'; // preenche as chamadas com/sem icone
		if(Item[i][1].length<3||Item[i][3].length<3||Item[i][2].length<3||Item[i][0].length<2) delItem(Item,i);
		}
	if(Item.length==1) document.write('<style>#anterior,#proximo{visibility:hidden;}</style>'); // se só tem 1 imagem, remove proximo/anterior
	atual = Math.random().toString().substring(2,6) % Item.length; // escolhe uma imagem inicial randomicamente
}
//***********************************************************************

//***********************************************************************
function changeOpac(opacity) {
	var object = document.getElementById('to-blend').style; 
	object.opacity = (opacity / 101);
	object.MozOpacity = (opacity / 101);
	object.KhtmlOpacity = (opacity / 101);
}
//***********************************************************************

//***********************************************************************
function blend(imagefile){
	var speed = 7;
	var timer = 0;
	for(i = 100; i > 0; i-=2) setTimeout('changeOpac('+i+')', timer++ * speed);
	setTimeout('changeContent()', timer * speed);
	for(i = 0; i <= 100; i+=2) setTimeout('changeOpac('+i+')', timer++ * speed);
}
//***********************************************************************

//***********************************************************************
function startPanel(){
	usaCredito = '';
	initialize();
	if(arguments.length>0) {
		if(!isNaN(arguments[0])||!isNaN(arguments[1])) atual = arguments[0]; // para setar qual foto entra primeiro (sem ser randomico)
		if(arguments[0]=='com-credito'||arguments[1]=='com-credito') usaCredito = '<div id="credito">'+Item[atual][0]+'</div>';
		}
	document.write('<div id="to-blend">'+usaCredito+'<a href="javascript:goURL()"><img src="'+Item[atual][1]+'" id="imgslide" name="img1" border="0" title="'+Item[atual][0]+'" alt="'+Item[atual][0]+'"></a>'); 
	document.write('<h2><a href="javascript:goURL()" id="p-link"><span id="icon-area">'+Item[atual][4]+'</span><span id="txt1">'+Item[atual][2]+'</span></a></h2></div>');
	
	/* BOTÕES ANTERIOR E AVANÇAR*/
	//document.write('<a id="anterior" onclick="if(okToGo)changeImg(-1)"><img src="http:\/\/www.unifran.br/principal/banners/voltar.gif" border="0"></a>');
	//document.write('<a id="proximo" onclick="if(okToGo)changeImg(1)"><img src="http:\/\/www.unifran.br/principal/banners/avancar.gif" border="0"></a>');
	/*****************************/
}
//***********************************************************************


okToGo = false;
onload = startSlide;