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JScript code:
<script language="javascript" type="text/javascript">
var xmlHttp = false;
try {
xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
try {
xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
} catch (e2) {
xmlHttp = false;
}
}
if (!xmlHttp && typeof XMLHttpRequest != 'undefined') {
xmlHttp = new XMLHttpRequest();
}

function callServer() {
var id = document.getElementById("Hotel").value;
if ((id == null) || (id =="")) return;
var url = "getRoom.asp?id=" + escape(id);

xmlHttp.open("GET", url, true);
xmlHttp.onreadystatechange = updatePage;
xmlHttp.send(null);

}

function updatePage() {
if (xmlHttp.readyState < 4) {

}
if (xmlHttp.readyState == 4) {
if(xmlhttp.status==200)
{
var response = xmlHttp.responseText;
}
}
}
</script>

VBScript code:

<select name="Hotel" id="Hotel" onchange="callServer()"></select>
<select name="Room">ÔõôÌî³äןöÏÂÀ­²Ëµ¥</select>



var response = xmlHttp.responseText
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document.getElementById("Room&


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<html>
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src="script/jquery-1.3.2.min ......
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