var ViewName = new Array(); 

function ciclo(i) {
    if(ViewName.length > 1) {
        tempo=10000;
        k=i+1;
        if(ViewName.length <= i) {
            k=1;
        }   
        setTimeout("getInfo(k)",tempo);
    }
}
 
function getInfo(i) {
    OffOnDiv(i);
    ciclo(i)
}

function OffOnDiv(NomeDiv) {
    for(j=0; j<ViewName.length; j++) {
       OffDiv(ViewName[j])
    }
	if(ViewName[NomeDiv]) {
	   OnDiv(ViewName[NomeDiv]);
	} else {
	   OnDiv(ViewName[0]);
	}
} 
	
function OffDiv(NomeDiv) {
    //alert(NomeDiv)
    if (document.getElementById) { //NN6 ed Opera ed IE 6
        document.getElementById(NomeDiv).style.display = "none";
    }
    else if (document.layers){ //NN4
        document.layers[NomeDiv].visibility="hide";
    }
    else if (document.all) { //IE 4
        document.all[NomeDiv].style.visibility="hidden";
    }
} 
    
function OnDiv(NomeDiv) {
    if (document.getElementById) {
        document.getElementById(NomeDiv).style.display = "block";
    }
    else if (document.layers){
        document.layers[NomeDiv].visibility="show";
    }
    else if (document.all) {
        document.all[NomeDiv].style.visibility="visible";
    }
}

function newImage(arg) {
    if (document.images) {
        rslt = new Image();
        rslt.src = arg;
        return rslt;
    }
}
function changeAllImages(NameImages) {
    changeImages('about', 'img/about.gif');
    changeImages('resources', 'img/resources.gif');
    changeImages('links', 'img/links.gif');
    changeImages('events', 'img/events.gif');
		changeImages(NameImages, 'img/'+NameImages+'sopra.gif');
}
function changeImages() {
    if (document.images && (preloadFlag == true)) {
        for (var i=0; i<changeImages.arguments.length; i+=2) {
            document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
        }
    }
}

var preloadFlag = false;
function preloadImages() {
    if (document.images) {
        aboutsopra = newImage("img/aboutsopra.gif");
        resourcessopra = newImage("img/resourcessopra.gif");
        linkssopra = newImage("img/linkssopra.gif");
        eventssopra = newImage("img/eventssopra.gif");
        preloadFlag = true;
    }
}