function xmlhttpPost(whichdiv,strURL) {
	
    var xmlHttpReq = false;
    var self = this;
    // Mozilla/Safari
    if (window.XMLHttpRequest) {
        self.xmlHttpReq = new XMLHttpRequest();
    }
    // IE
    else if (window.ActiveXObject) {
        self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
    }
    self.xmlHttpReq.open('POST', strURL, true);
    self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
    self.xmlHttpReq.onreadystatechange = function() {
        if (self.xmlHttpReq.readyState == 4) {
            updatepage(whichdiv,self.xmlHttpReq.responseText);
        }
    }
	self.xmlHttpReq.send("w=1");
}

function updatepage(whichdiv,str){
    document.getElementById(whichdiv).innerHTML = str;
}