Code
import {session} from 'wix-storage';
var mySites = ["Include", "OneWay", "Site-Map", "example"]
var counter = 0
var timer = 10000
$w.onReady(function () { })
export function button99_click(event) {
$w('#text1').show()
setInterval(function(){
setTimeout(()=>{$w('#text1').hide('fade')},3000)
if (counter>=5) {counter=0, $w('#text1').text="Loading site in" + timer/1000 + "seconds..."}
else {$w('#text1').show(), $w('#text1').text="Loading next site in" + timer/1000 + "seconds..."}
let VALUE = mySites[counter];
console.log("Current-Counter: " + counter)
switch (VALUE) {
case 'example': $w("#html1").src = "https://www.example.com"; console.log('Loading EXAMPLE...'); break;
case 'Include': $w("#html1").src = "https://russian-dima.wixsite.com/meinewebsite/how2-include"; console.log('Loading INCLUDE-EXAMPLE...'); break;
case 'OneWay': $w("#html1").src = "https://russian-dima.wixsite.com/meinewebsite/oneway-ticket"; console.log('Loading OneWay-Ticket-Example...'); break;
case 'Site-Map': $w("#html1").src = "https://russian-dima.wixsite.com/meinewebsite/map"; console.log('Loading Site-Map-Example...'); break;
default: console.log("???");
}
counter=counter+1
console.log("Current-Counter: " + counter)
}, timer);
}