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<script language="Javascript" type="text/javascript">
<!--
 
function createRequestObject() {
    var tmpXmlHttpObject;
 
    //depending on what the browser supports, use the right way to create the XMLHttpRequest object
    if (window.XMLHttpRequest) { 
        // Mozilla, Safari would use this method ...
        tmpXmlHttpObject = new XMLHttpRequest();
 
    } else if (window.ActiveXObject) { 
        // IE would use this method ...
        tmpXmlHttpObject = new ActiveXObject("Microsoft.XMLHTTP");
    }
 
    return tmpXmlHttpObject;
}
 
//call the above function to create the XMLHttpRequest object
var http = createRequestObject();
 
function makeGetRequest(op) {
    //make a connection to the server ... specifying that you intend to make a GET request 
    //to the server. Specifiy the page name and the URL parameters to send
    	    alert("avoun"+op);
 
       op=op-3;
	    alert("apres"+op);
 
    //actually send the request to the server
    http.send(op);
}
 
function processResponse() {
    //check if the response has been received from the server
    if(http.readyState == 4){
 
        //read and assign the response from the server
        var response = http.responseText;
 
        //do additional parsing of the response, if needed
 
        //in this case simply assign the response to the contents of the <div> on the page. 
        document.getElementById('description').innerHTML = response;
 
        //If the server returned an error message like a 404 error, that message would be shown within the div tag!!. 
        //So it may be worth doing some basic error before setting the contents of the <div>
    }
}
 
-->
</script> | 
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