if (document.images) {

 var base_url = '/';
 if(window.location.protocol == 'https:') base_url = '/bwga.net/';

 homeon = new Image();
 homeon.src = base_url + "images/menu_home_on.gif";

 homeoff = new Image();
 homeoff.src = base_url + "images/menu_home_off.gif";

 serviceson = new Image();
 serviceson.src = base_url + "images/menu_services_on.gif";

 servicesoff = new Image();
 servicesoff.src = base_url + "images/menu_services_off.gif";

 abouton = new Image();
 abouton.src = base_url + "images/menu_about_on.gif";

 aboutoff = new Image();
 aboutoff.src = base_url + "images/menu_about_off.gif";

 the_toadon = new Image();
 the_toadon.src = base_url + "images/menu_the_toad_on.gif";

 the_toadoff = new Image();
 the_toadoff.src = base_url + "images/menu_the_toad_off.gif";

 contact_uson = new Image();
 contact_uson.src = base_url + "images/menu_contact_us_on.gif";

 contact_usoff = new Image();
 contact_usoff.src = base_url + "images/menu_contact_us_off.gif";

 client_loginon = new Image();
 client_loginon.src = base_url + "images/menu_client_login_on.gif";

 client_loginoff = new Image();
 client_loginoff.src = base_url + "images/menu_client_login_off.gif";
 
 chemical_analysis_on = new Image();
 chemical_analysis_on.src = base_url + "images/chemical_analysis_on.jpg";

 chemical_analysis_off = new Image();
 chemical_analysis_off.src = base_url + "images/chemical_analysis_off.jpg";
 
 olive_oil_on = new Image();
 olive_oil_on.src = base_url + "images/olive_oil_on.jpg";

 olive_oil_off = new Image();
 olive_oil_off.src = base_url + "images/olive_oil_off.jpg";
 
 microbial_analysis_on = new Image();
 microbial_analysis_on.src = base_url + "images/microbial_analysis_on.jpg";

 microbial_analysis_off = new Image();
 microbial_analysis_off.src = base_url + "images/microbial_analysis_off.jpg";
 
 supplies_on = new Image();
 supplies_on.src = base_url + "images/supplies_on.jpg";

 supplies_off = new Image();
 supplies_off.src = base_url + "images/supplies_off.jpg";
 
}

function View(filename) {
LeftPosition = (screen.width) ? (screen.width-320)/2 : 0;
TopPosition = (screen.height) ? (screen.height-240)/2 : 0;
OpenWin = this.open("/"+filename,"PhotoWindow","toolbar=no,width=320,height=240,left="+LeftPosition+",top="+TopPosition+",directories=no,status=no,scrollbars=no,resize=no,menubar=no")
}

function AjaxRequest(url, callbackFunction) {

    var that=this;
    this.updating = false;

    this.abort = function() {
        if (that.updating) {
            that.updating=false;
            that.AJAX.abort();
            that.AJAX=null;
        }
    }

    this.send = function(passData,postMethod) {
        if (that.updating) { return false; }
            that.AJAX = null;
            if (window.XMLHttpRequest) {
                that.AJAX=new XMLHttpRequest();
            } else {
                that.AJAX=new ActiveXObject("Microsoft.XMLHTTP");
            }
            if (that.AJAX==null) {
            return false;
        } else {
            that.AJAX.onreadystatechange = function() {
                if (that.AJAX.readyState==4) {
                    that.updating=false;
                    that.callback(that.AJAX.responseText,that.AJAX.status,that.AJAX.responseXML);
                    that.AJAX=null;
                }
            }
            that.updating = new Date();
            if (/post/i.test(postMethod)) {
                var uri=urlCall+'?'+that.updating.getTime();
                that.AJAX.open("POST", uri, true);
                that.AJAX.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
                that.AJAX.setRequestHeader("Content-Length", passData.length);
                that.AJAX.send(passData);
            } else {
                var uri=urlCall+'?'+passData+'&timestamp='+(that.updating.getTime());
                that.AJAX.open("GET", uri, true);
                that.AJAX.send(null);
            }
            return true;
        }
    }

    var urlCall = url;
    this.callback = callbackFunction || function () { };

}