<!--
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}
function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
	image1on = newImage("images/nav2/home_f2.gif");
	image1off = newImage("images/nav2/home.gif");
   	image2on = newImage("images/nav2/abou_f2.gif");
	image2off = newImage("images/nav2/abou.gif");	
	image3on = newImage("images/nav2/chal_f2.gif");
	image3off = newImage("images/nav2/chal.gif");
	image4on = newImage("images/nav2/webc_f2.gif");
	image4off = newImage("images/nav2/webc.gif");
	image5on = newImage("images/nav2/acti_f2.gif");
	image5off = newImage("images/nav2/acti.gif");
	image6on = newImage("images/nav2/teac_f2.gif");
	image6off = newImage("images/nav2/teac.gif");
	image7on = newImage("images/nav2/stud_f2.gif");
	image7off = newImage("images/nav2/stud.gif");
	image8on = newImage("images/acti/btn_sys_f2.gif");
	image8off = newImage("images/acti/btn_sys.gif");
	image9on = newImage("images/acti/btn_one_f2.gif");
	image9off = newImage("images/acti/btn_one.gif");
	image10on = newImage("images/acti/btn_two_f2.gif");
	image10off = newImage("images/acti/btn_two.gif");
	image11on = newImage("images/acti/btn_eas_f2.gif");
	image11off = newImage("images/acti/btn_eas.gif");
	image12on = newImage("images/acti/btn_har_f2.gif");
	image12off = newImage("images/acti/btn_har.gif");
	image13on = newImage("images/acti/btn_eas_f2.gif");
	image13off = newImage("images/acti/btn_eas.gif");
	image14on = newImage("images/acti/btn_har_f2.gif");
	image14off = newImage("images/acti/btn_har.gif");
	image15on = newImage("images/acti/btn_eas_f2.gif");
	image15off = newImage("images/acti/btn_eas.gif");
	image16on = newImage("images/acti/btn_har_f2.gif");
	image16off = newImage("images/acti/btn_har.gif");
	image17on = newImage("images/acti/btn_eas_f2.gif");
	image17off = newImage("images/acti/btn_eas.gif");
	image18on = newImage("images/acti/btn_har_f2.gif");
	image18off = newImage("images/acti/btn_har.gif");
	image19on = newImage("images/acti/exp1_f2.gif");
	image19off = newImage("images/acti/exp1.gif");
	image20on = newImage("images/acti/exp2_f2.gif");
	image20off = newImage("images/acti/exp2.gif");
	image21on = newImage("images/acti/exp3_f2.gif");
	image21off = newImage("images/acti/exp3.gif");
	image22on = newImage("images/acti/exp4_f2.gif");
	image22off = newImage("images/acti/exp4.gif");
	image23on = newImage("images/acti/exp5_f2.gif");
	image23off = newImage("images/acti/exp5.gif");
	image24on = newImage("images/acti/exp6_f2.gif");
	image24off = newImage("images/acti/exp6.gif");
	image25on = newImage("images/acti/exp7_f2.gif");
	image25off = newImage("images/acti/exp7.gif");
	image26on = newImage("images/acti/btn_key_f2.gif");
	image26off = newImage("images/acti/btn_key.gif");
	image27on = newImage("images/acti/btn_quz_f2.gif");
	image27off = newImage("images/acti/btn_quz.gif");
	image28on = newImage("images/acti/btn_sub_f2.gif");
	image28off = newImage("images/acti/btn_sub.gif");
	image29on = newImage("images/acti/btn_hig_f2.gif");
	image29off = newImage("images/acti/btn_hig.gif");
	image30on = newImage("images/acti/btn_mid_f2.gif");
	image30off = newImage("images/acti/btn_mid.gif");
	preloadFlag = true;
	}
}
preloadImages();
//popup window
function openWindow(url,name,features) {
  popupWin = window.open(url,name,features)
}
// -->