what is this script doing in my headinclude ??

[Sun Boy]

good day every one
i was cleaning my vb style by http://validator.w3.org when i saw this strenjer javascript that i dont know what it's for
so i take this script out and i test my style but nothing hapen like this script have nothing to do
but mybe i'm wrong so i sad to my self let me ask the people her
the script is

<script type="javascript1.2" language="javascript1.2">
var rector=3
var stopit=0 
var a=1
function init(which){
stopit=0
shake=which
shake.style.left=0
shake.style.top=0
}
function rattleimage(){
if ((!document.all&&!document.getElementById)||stopit==1)
return
if (a==1){
shake.style.top=parseInt(shake.style.top)+rector
}
else if (a==2){
shake.style.left=parseInt(shake.style.left)+rector
}
else if (a==3){
shake.style.top=parseInt(shake.style.top)-rector
}
else{
shake.style.left=parseInt(shake.style.left)-rector
}
if (a<4)
a++
else
a=1
setTimeout("rattleimage()",50)
}
function stoprattle(which){
stopit=1
which.style.left=0
which.style.top=0
}
</script>

after that there is another small script

<script type="text/javascript" language="JavaScript1.2">
function fla++++(){
if (!document.all)
return
if (myexample.style.borderColor=="blue")
myexample.style.borderColor="red"
else
myexample.style.borderColor="blue"
}
setInterval("fla++++()", 200)
</script>

what are they for ?
that's the big question