// JavaScript Document

function rangSwitch(rang,pause)
{
var divs=document.getElementById('wrap').getElementsByTagName('div');
var iterate=0, obj;
while(obj=divs[iterate++])
{obj.style.display='none';}

divs[rang].style.display='block';
rang++;
rang==divs.length?rang=0:null;

setTimeout(function(){rangSwitch(rang,pause)},pause);
}
window.onload=function()
{
var pause=6000; //computer per miliseconds
setTimeout(function(){rangSwitch(1,pause)},pause);
}