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<html>
<head>
<title>Simple Array Demo</title>
<script>
var counter = 0;
function upDate(){
counter++;
if (counter > 3){
counter = 0;
}
var description = new Array(3)
description[0] = "A";
description[1] = "B";
description[2] = "C";
description[3] = "D";
document.myForm.txtDescription.value = description[counter];
}
</script>
</head>
<body onLoad = "initialize()">
<center>
<form name = "myForm">
<input type = "text" value = "A" name = "txtDescription">
<input type = "button" value = "next" onClick = "upDate()">
</form>
</center>
</body>
</html>
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