fotos = [] ;
    texto = [];
    i = 0 ;

    fotos[0] = 'itapoa/8087.jpg' ;
    texto[0] = 'Itapoá - SC' ;

    fotos[1] = 'itapoa/8090.jpg';
    texto[1] = 'Barra do Saí' ;

    fotos[2] = 'itapoa/6148.jpg';
    texto[2] = 'Barra do Saí' ;
	
    fotos[3] = 'itapoa/6155.jpg';
    texto[3] = 'Barra do Saí' ;
	
    fotos[4] = 'itapoa/6165.jpg';
    texto[4] = 'Estrada Cornelsen' ;
	
    fotos[5] = 'itapoa/6175.jpg';
    texto[5] = 'Balneário Rainha e Cambijú' ;
	
    fotos[6] = 'itapoa/6181.jpg';
    texto[6] = 'As 3 pedras de Itapema do Norte' ;

    fotos[7] = 'itapoa/6216.jpg';
    texto[7] = 'Avenida André Rodrigues de Freitas' ;

	fotos[8] = 'itapoa/6217.jpg';
    texto[8] = 'Itapema do Norte' ;

    fotos[9] = 'itapoa/6150.jpg';
    texto[9] = 'Barra do Saí' ;

   function next() {
	if ( (i+1) < fotos.length ) show( i+1 ) ;
}
   
    function prev() {
	if ( i > 0 ) show( i-1 ) ;
}

	function imagePreload() {  var urlImages=new Array();  
var totalLoaded=0;  var n=0;  do {    urlImages[n]=new Image();    urlImages[n].src=arguments[n];    
if(urlImages[n].complete) {      totalLoaded++;    }    n++;  }  
while(n<arguments.length)  if(document.all) {    
var loadingErrors=arguments.length - totalLoaded;
}}
   

    function show( n ) {
        i = n ;
        document.getElementById("foto").src = fotos[i] ;
        document.getElementById("legenda").innerHTML ='<p>' + texto[i] + '</p>' ;
        document.getElementById("contador").innerHTML = '<p>Foto ' + (n+1) + ' de 10 </p>' ;
        setOpacities();
		imagePreload(fotos[i+1]);
    }
  
    function setOpacities() {
        var browser = navigator.appName;
       
        if (browser == "Netscape") {
            filtro1 = ".MozOpacity = '0.5'";
            filtro2 = ".MozOpacity = '1.0'";
        } else {
            filtro1 = ".filter = 'alpha(opacity=50)'";
            filtro2 = ".filter = 'alpha(opacity=100)'";
        }
       
        if (i == 0) {
            eval("document.getElementById('antes').style" + filtro1);
        } else {
            eval("document.getElementById('antes').style" + filtro2);
        }
   
        if ((i+1) == fotos.length) {
            eval("document.getElementById('depois').style" + filtro1);
        } else {
            eval("document.getElementById('depois').style" + filtro2);
        }
    }
	
function messages(){
var body = "";

        if (window.XMLHttpRequest) {
                xmlhttp = new XMLHttpRequest();
        } else if (window.ActiveXObject) {
                xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
        } else {
            alert("Seu navegador não suporta XMLHttpRequest.");
                return;
        }

    xmlhttp.open("POST", "randon.php", true);
    xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=UTF-8");
    xmlhttp.setRequestHeader("Cache-Control", "no-store, no-cache, must-revalidate");
    xmlhttp.setRequestHeader("Cache-Control", "post-check=0, pre-check=0");
    xmlhttp.setRequestHeader("Pragma", "no-cache");

    xmlhttp.onreadystatechange = processReqChange;
    xmlhttp.send(null);

}

function processReqChange() {
    if (xmlhttp.readyState == 4) {
            if (xmlhttp.status == 200) {
                document.getElementById("randon").innerHTML = xmlhttp.responseText;
                               } else {
                    alert("Problemas ao carregar o arquivo.");
                }
    }
}