function DoPopup(url,name,width,height) {                                   
  args = "width=" + width + "," + "height=" + height + "," + "location=0," + "menubar=0," + "resizable=0," + "scrollbars=0";                           
  popupWin = window.open(url, name, args)                                   
}                                                                           
                                                                            
isNS4 = (document.layers) ? true : false;
NS4 = (document.layers);
IE4 = (document.all);
ver4 = (NS4 || IE4);   
isMac = (navigator.appVersion.indexOf("Mac") != -1);
isMenu = (NS4 || (IE4 && !isMac));
function popUp(){return};
function popDown(){return};
function startIt(){return};
   var platform = navigator.appVersion;
isUNIX = (platform.indexOf("X11") != -1) ||
  (platform.indexOf("Linux") != -1) ||
  (platform.indexOf("SunOS") != -1) ||
  (platform.indexOf("IRIX") != -1) ||
  (platform.indexOf("HP-UX") != -1);

if (!ver4) event = null;

browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4 )))

// preload universal images
if (browser) {

//home  !1
	home_off = new Image;
	home_off.src = "images/button_home1.gif";
	home_on = new Image;
	home_on.src = "images/button_home2.gif";

//aboutus !2
	aboutus_off = new Image;
	aboutus_off.src = "images/button_aboutus1.gif";
	aboutus_on = new Image;
	aboutus_on.src = "images/button_aboutus2.gif";

//services !3
	services_off = new Image;
	services_off.src = "images/button_services1.gif";
	services_on = new Image;
	services_on.src = "images/button_services2.gif";

//latestnews !4
	latestnews_off = new Image;
	latestnews_off.src = "images/button_latest_news1.gif";
	latestnews_on = new Image;
	latestnews_on.src = "images/button_latest_news2.gif";

//contactus !5
	contactus_off = new Image;
	contactus_off.src = "images/button_contactus1.gif";
	contactus_on = new Image;
	contactus_on.src = "images/button_contactus2.gif";
	

}

function putImage(imgDocID,imgObjName) {
if (browser) {
        document.images[imgDocID].src = eval(imgObjName + ".src")
	}
}