Нужна помощь в написании скрипта

vadimiron · Конфигурация компьютера

Вот какой у меня получился код:

HTML код:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<script language="JavaScript">
var DHTML = (document.getElementById || document.all || document.layers);
function getObj(name)
{
  if (document.getElementById)
  {
          this.obj = document.getElementById(name);
        this.style = document.getElementById(name).style;
  }
  else if (document.all)
  {
        this.obj = document.all[name];
        this.style = document.all[name].style;
  }
  else if (document.layers)
  {
           this.obj = document.layers[name];
           this.style = document.layers[name];
  }
}

function hide(x)
{
        x.style.visibility='hidden';
}

function show(x)
{
        x.style.visibility='visible';
}

function init(div)
{
        if (!DHTML) return;
        var x = new getObj(div);
        return x;
}
var flag=0;
function rolling(div1,div2)
{
        if(!flag)
        {
                hide(div1);
                show(div2);
                flag=1;
        }
        else
        {
                hide(div2);
                show(div1);
                flag=0;
        }
        setTimeout("rolling(div1,div2)",1000);
}
</script>
</head>
<body>
<div id='layer1' style="visibility:visible;position: absolute;top:15;left:15;">LALALALA<br>FIRST DIV</div>
<div id='layer2' style="visibility:hidden;position: absolute;top:15;left:15;">TUTUTUTU<br>SECOND DIV</div>

<script language="JavaScript">
var div1=init('layer1');
var div2=init('layer2');
setTimeout("rolling(div1,div2)",2000);
</script>

</body>
</html>