Disko efekt

<script type="text/javascript">
levo2=0
levo3=0
levo4=0
levo5=0
levo6=0
function gremo()
{
klic1=setInterval("plast2()",25)
}

function plast2()
{
if (levo2<460)levo2=levo2+1
if (levo2==100) klic2=setInterval("plast3()",25)
{
document.getElementById("plast2").style.clip="rect(0px " + levo2 + "px 300px "+ (levo2-60) +"px)"

}
}
function plast3()
{
if (levo3<460)levo3=levo3+1
if (levo3==100) klic3=setInterval("plast4()",25)
{
document.getElementById("plast3").style.clip="rect(0px " + levo3 + "px 300px "+ (levo3-60) +"px)"

}
}
function plast4()
{
if (levo4<460)levo4=levo4+1
if (levo4==100) klic4=setInterval("plast5()",25)
{
document.getElementById("plast4").style.clip="rect(0px " + levo4 + "px 300px "+ (levo4-60) +"px)"

}
}
function plast5()
{
if (levo5<460)levo5=levo5+1
if (levo5==100) klic5=setInterval("plast6()",25)
{
document.getElementById("plast5").style.clip="rect(0px " + levo5 + "px 300px "+ (levo5-60) +"px)"

}
}
function plast6()
{
if (levo6<460)levo6=levo6+1
{
document.getElementById("plast6").style.clip="rect(0px " + levo6 + "px 300px "+ (levo6-60) +"px)"

}
}

</script>
<style type="text/css">
img
{
position: absolute;
left:250px;
top: 20px;
width: 400px;
height: 300px;
clip: rect(0px 0px 0px 0px)
}
img#plast1
{
clip: rect(auto auto auto auto)
}
</style>

<img id="plast1" src="slike/slika2.jpg" alt="slika" />
<img id="plast2" src="slike/slika2m.jpg" alt="slika" />
<img id="plast3" src="slike/slika2z.jpg" alt="slika" />
<img id="plast4" src="slike/slika2r.jpg" alt="slika" />
<img id="plast5" src="slike/slika2v.jpg" alt="slika" />
<img id="plast6" src="slike/slika2y.jpg" alt="slika" />