<html>
<body>
<script language="JavaScript">
function function1() {
var myArguments = new Object();
myArguments.param1 = document.all.myColor.value;
window.showModalDialog("http://www.java2s.com", myArguments, '');
}
</script>
<select id="myColor">
<option value="red">Red</option>
<option value="green">Green</option>
<option value="blue">Blue</option>
<option value="yellow">Yellow</option>
</select>
<button onclick="function1();">Open Window</button>
</body>
</html>
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