var news_array = [];
var it = 0;
var mytext = '';
var text = '';

function randomNumber (m,n)
{
  m = parseInt(m);
  n = parseInt(n);
  return Math.floor( Math.random() * (n - m + 1) ) + m;
}

function changeNews()
{
   var sel = randomNumber(1, 5);
   document.getElementById('typing').innerHTML = '<a href="[SITE_URL]News.php"><b>подробнее</b></a><br/>';
   mytext = news_array[ sel ];
   typeit();
}

function typeit()
{
   if(mytext.charAt(it) == '<')
   {
   	  text = mytext.charAt(it);
   	  it++;
   	  typeit();
   	  return;
   };

   if(text.length > 0 && mytext.charAt(it) != '>')
   {
   	  text += mytext.charAt(it);
   	  it++;
   	  typeit();
   	  return;
   };

   if (it < mytext.length - 1)
    {
	   document.getElementById('typing').innerHTML += text + mytext.charAt(it);
	   text = '';
       it++;
       time = setTimeout("typeit()", 100);
    }
    else { it = 0;  setTimeout("changeNews()", 3000); return; };
}