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/*
JavaScript Unleashed, Third Edition
by Richard Wagner and R. Allen Wyke
ISBN: 067231763X
Publisher Sams CopyRight 2000
*/
<html>
<head>
<title>Hidden Var Test</title>
<script language="JavaScript">
var holder = ""
var holder2 = ""
function postData(value) {
holder2 = holder
holder = value
}
function resetValue() {
var len = document.form1.ctyList.length
for (var i=0; i<len; i++) {
if (document.form1.ctyList[i].value == holder2) {
document.form1.ctyList[i].checked = "1"
break }
}
}
</script>
</head>
<body>
<h1>I remember</h1>
<form name="form1" method="POST">
<p><input type=radio name="ctyList" value="Argentina"
onClick="postData(this.value)">Argentina</p>
<p><input type=radio name="ctyList" value="Burkina Faso"
onClick="postData(this.value)">Burkina Faso</p>
<p><input type=radio name="ctyList" value="Pakistan"
onClick="postData(this.value)">Pakistan</p>
<p><input type=radio name="ctyList" value="Switzerland"
onClick="postData(this.value)">Switzerland</p>
<p><input type=radio name="ctyList" value="United Kingdom"
onClick="postData(this.value)">United Kingdom</p>
<p><input type=radio name="ctyList" value="United States of America"
onClick="postData(this.value)">United States of America</p>
<p><input type=radio name="ctyList" value="Zambia"
onClick="postData(this.value)">Zambia</p>
<p><input type=radio name="ctyList" value="Zimbabwe"
onClick="postData(this.value)">Zimbabwe</p>
<p><input type=button name="UndoLast" value="Undo Last"
onClick="resetValue()"></p>
</form>
</body>
</html>
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