Length of JS Array (JavaScript tutorial IV)

This is a simple function that uses length to judge an array and iterate over an array.

<script language= "Web Effects" type= "Text/javascript" >
<!--
function Bubblesort (arr) {
Outer Loop, total arr.length for maximum operation
for (Var i=0;i<arr.length;i++) {
Inner Loop, find the first-largest element and exchange it with the first element
for (Var j=i;j<arr.length;j++) {
if (Arr[i]<arr[j]) {
Swap position of two elements
var temp=arr[i];
ARR[I]=ARR[J];
Arr[j]=temp;
}
}
}
}

var arr=[32,55,78,43,78,10,45,20,9,89];
Bubblesort (arr);

Output: 89,78,78,55,45,43,32,20,10,9
for (Var i=0;i<arr.length;i++) {
document.write (arr[i]+ ",");
}
-->
</script>