// JavaScript Document

function sizeFont (elem, acao){
// tamanho inicial da fonte (em px)
var tamInic = 13;
// Tamanho mínimo da [b]fonte (em px)
var tamMin = 4;
// Tamanho máximo da fonte (em px)
var tamMax = 25;
// Pega o tamanho da fonte. Se não foi setada ainda (primeira vez que a função é executada) terá como tamanho padrão 'tamInic'.
if (document.getElementById(elem).style.fontSize == "") {
var tamFonte = tamInic;
}else{
var tamFonte = parseInt(document.getElementById(elem).style.fontSize);
}
switch (acao){
// Aumenta o tamanho, enquanto foi menor que 'tamMax'
case '+':
if (tamFonte < tamMax)
document.getElementById(elem).style.fontSize = (tamFonte + 2) + "px";
break;
// Diminui o tamanbo, enquanto for maior que 'tamMin'
case '-':
if (tamFonte > tamMin)
document.getElementById(elem).style.fontSize = (tamFonte - 2) + "px";
break;
}
}


//MUDA COR


function mudaCor(Cor2)
{
	document.getElementById('troca_css').href = 'http://www.pacatuba.ce.gov.br/estilos/2008/layout_'+Cor2+'.css';
//	if(CojerValorCookie())
//	{
	var Caducidad = 6; //Vai expirar a os 6 meses
	expireDate = new Date;
	expireDate.setMonth(expireDate.getMonth() + Caducidad);
	document.cookie = "Cor" + "=" + Cor2 + ";expires=" + expireDate.toGMTString()+";";
	//document.write(document.cookie);
	
//	}
}

function leerCor() {
	var inicio = document.cookie.lastIndexOf("Cor=")+4;
	var final = inicio+(document.cookie.substring(inicio, document.cookie.length).indexOf(";"));
	if (final < inicio) {
		final = inicio+7;
	}
	var Galleta="";
	if (inicio>4) Galleta=document.cookie.substring(inicio, final);
	return Galleta;
}


var Cor= leerCor();

if(Cor==""){Cor="verde"}
document.getElementById('troca_css').href = 'http://www.pacatuba.ce.gov.br/estilos/2008/layout_'+Cor+'.css';





//banner rotator, sem ser em flash



function Banner(refreshTime, width, height, altText, start, random){
	this.objName = "bannerAd" + (Banner.count++);
	eval(this.objName + "=this");
	if (!refreshTime) this.refreshTime = 5000; else this.refreshTime = refreshTime*1000;
	if (!width) this.width = 460; else this.width = width;
	if (!height) this.height = 68; else this.height = height;
	if (random == null) this.random = 1; else this.random = random;
	this.altText = altText;
	this.ads = [];
	if (start) this.currentAd = start-1; else start = null;
	this.mySize = 0;

	this.Ad = function(src, href, target, mouseover) {
		var tempImage = new Image();
		tempImage.src = src;
		this.ads[this.mySize] = new Object();
		var ad = this.ads[this.mySize];
		ad.src = src;
		if (typeof(target) == "undefined" || target == null) ad.target = "_self"; else ad.target = target;
		ad.href = href;
		ad.mouseover = mouseover;
		this.mySize++;
	}

	this.link = function(){
		var	ad = this.ads[this.currentAd];
		if (ad.target == "_self"){
			location.href = ad.href;
		}
		else if (ad.target == "_blank" || ad.target == "_new"){
			open(ad.href,this.objName + "Win");
		}
		else top.frames[ad.target].location.href = ad.href;
	}

	this.showStatus = function(){
		var ad = this.ads[this.currentAd];
		if (ad.mouseover) status = ad.mouseover;
		else status = ad.href;
	}

	this.randomAd = function(){
		var n;
		do { n = Math.floor(Math.random() * (this.mySize)); } 
		while(n == this.currentAd);
		this.currentAd = n;
	}

	this.output = function(){
		var tempCode = "";
		if (this.mySize > 1){
			if (this.currentAd == null) this.randomAd();
			if (this.currentAd >= this.mySize) this.currentAd = this.mySize - 1;
			tempCode = '<a href="javascript:'+this.objName+'.link();"';
			tempCode += ' onMouseOver="' + this.objName + '.showStatus(); return true"';
			tempCode += ' onMouseOut="status=\'\';return true">';
			tempCode += '<img src="' + this.ads[this.currentAd].src + '" width="' + this.width;
			tempCode += '" name="' + this.objName + 'Img" height="' + this.height + '" ';
			if (this.altText) tempCode += 'alt="'+this.altText + '" ';
			tempCode += 'border="0" /></a>';
			document.write(tempCode);
			this.nextAd();
		} else document.write("Error: two banners must be defined for the script to work.");
	}

	this.newAd = function(){
		if (!this.random){	
			this.currentAd++;
			if (this.currentAd >= this.mySize)
			   this.currentAd = 0;
		}
		else {
			this.randomAd();
		}
		this.nextAd();
	}

	this.nextAd = function(){
		document.images[this.objName+ 'Img'].src = this.ads[this.currentAd].src;
		setTimeout(this.objName+'.newAd()',this.refreshTime)
	}
}
Banner.count = 0;