function CHP() {
    this.ajaxRequest = null;
    onloadEvents.push(function () {
        chp.getFileCount();
    });
    this.getFileCount = function () {
        if (this.ajaxRequest !== null) {
            return;
        } else {
            this.ajaxRequest = new AjaxRequest();
        }
        this.ajaxRequest.openGet('headimages/chp.php', this.handleResponse);
    };

    this.handleResponse = function () {
        try {
            if (chp.ajaxRequest.xmlHttpRequest.status !== 200) {
                //alert('ajax request http error ' + chp.ajaxRequest.xmlHttpRequest.status);
            } else {
                var src = '../wbb/headimages/' + chp.ajaxRequest.xmlHttpRequest.responseText;
                if (window.IS_IE) {
                    document.getElementById('logo').childNodes[1].childNodes[0].src = src;
                } else {
                    document.getElementById('logo').childNodes[3].childNodes[1].src = src;
                }
            }
        } catch (e) {}
    };
}
var chp = new CHP();