<script>
var i = prompt("How much times do you want this messages to appear? (Choose a number above 25)")
if(i <= 25 || typeof i === 'string') {confirm("BE PUNISHED IT MUST BE A NUMBER ABOVE 0"); var i = 1000}
for(i; i > 0; i--)
{
confirm("This is the " + i + " message! There is going to be more " + (i-1) + " messages!" )
}
if(i === 0) {confirm("YOU DID IT!")}
</script>