var http_request1;
    var displayArea = null;
    function makeRequest1(url) {
        //http_request1.abort();
        if (http_request1!=null) http_request1.abort();
        
        http_request1 = false;
        
        if (window.XMLHttpRequest) { // Mozilla, Safari,...
            http_request1 = new XMLHttpRequest();
            if (http_request1.overrideMimeType) {
                http_request1.overrideMimeType('text/xml');
            }
        } else if (window.ActiveXObject) { // IE
            try {
                http_request1 = new ActiveXObject("Msxml2.XMLHTTP");
           } catch (e) {
                try {
                    http_request1 = new ActiveXObject("Microsoft.XMLHTTP");
                } catch (e) {}
            }
        }
        if (!http_request1) {
            alert('Giving up :( Cannot create an XMLHTTP instance');
            return false;
        }
        if(url.indexOf("?")>0) {
        	url += "&";
        } else {
        	url += "?";
        }
        url += "time=" + new Date();
        http_request1.open('GET', url, true);
        http_request1.send(null);
        http_request1.onreadystatechange = alertContents1;
    }
    function alertContents1() {
//alert("alertContents1:" + http_request1.readyState);        
        if (http_request1.readyState == 4) {
            if (http_request1.status == 200) {
            	var i=0;
	            var prefix = "<!--DISPLAYAREA:";
	            var suffix = "-->";
	            var responseText = http_request1.responseText;
				for(;responseText.indexOf(prefix,i)>=0;) {
	                //alert(i + "  " + responseText.indexOf(prefix,i) + " " + responseText.indexOf(suffix,i));
	                displayArea = responseText.substring(responseText.indexOf(prefix,i)+prefix.length,responseText.indexOf(suffix,responseText.indexOf(prefix,i)));
	                var responseText1 = responseText.substring(responseText.indexOf(prefix,i),responseText.indexOf("<!--END:"+displayArea+"-->",i));
	                if (document.getElementById(displayArea)) {
	                	document.getElementById(displayArea).innerHTML = responseText1;  
	                }
	                i = responseText.indexOf("<!--END:"+displayArea+"-->",i)>0?responseText.indexOf("<!--END:"+displayArea+"-->",i)+1:i+5;
	                //alert(responseText.indexOf("<!--END:"+displayArea+"-->") + " " + displayArea + " " + responseText1);
	            }
            } else {
            	if (http_request1.status !=0){ 
                	alert('response status error...' + http_request1.status);
                }
            }//if (http_request
        }
    }