JavaScript Array Part 4

Code:

<script language="javascript">
function xyz(){
var data = document.frm.search.value;
var arr = new Array("USA","UK","Canada","Italy","France","China");
var flag = 0;
for(var i=0;i<arr.length;i++){
if(data.toLowerCase()==arr[i].toLowerCase()){

flag = 1;
break;
}
}
if(flag==0){
document.write("The given input is not found in the array");

}
else {

document.write("The given input is found in the array");

}
}

</script>

<form name="frm">
<label>Enter data that you search</label>
<input type="text" name="search" />
    <br />
    <input type="button" value="Search" onClick="xyz()" />

</form>