if (document.images) {
    nav1on  = new Image(); nav1on.src  = "image/nav_home_over.gif";
    nav1off = new Image(); nav1off.src = "image/nav_home.gif";
    nav2on  = new Image(); nav2on.src  = "image/nav_photo_over.gif";
    nav2off = new Image(); nav2off.src = "image/nav_photo.gif";
    nav3on  = new Image(); nav3on.src  = "image/nav_sponsor_over.gif";
    nav3off = new Image(); nav3off.src = "image/nav_sponsor.gif";
    nav4on  = new Image(); nav4on.src  = "image/nav_map1_over.gif";
    nav4off = new Image(); nav4off.src = "image/nav_map1.gif";
    nav5on  = new Image(); nav5on.src  = "image/nav_player_event_over.gif";
    nav5off = new Image(); nav5off.src = "image/nav_player_event.gif";
    nav6on  = new Image(); nav6on.src  = "image/nav_player_reg_over2.gif";
    nav6off = new Image(); nav6off.src = "image/nav_player_reg2.gif";
    nav7on  = new Image(); nav7on.src  = "image/nav_player_accom_over.gif";
    nav7off = new Image(); nav7off.src = "image/nav_player_accom.gif";

    nav8on  = new Image(); nav8on.src  = "image/nav_photo_over2.gif";
    nav8off = new Image(); nav8off.src = "image/nav_photo2.gif";
    nav9on  = new Image(); nav9on.src  = "image/nav_sponsor_over2.gif";
    nav9off = new Image(); nav9off.src = "image/nav_sponsor2.gif";

    
	target1on  = new Image(); target1on.src  = "image/nav_services2_over.gif";
	target1off = new Image(); target1off.src = "image/nav_services2.gif";
	target2on  = new Image(); target2on.src  = "image/nav_portfolio2_over.gif";
	target2off = new Image(); target2off.src = "image/nav_portfolio2.gif";
	target3on  = new Image(); target3on.src  = "image/nav_mission2_over.gif";
	target3off = new Image(); target3off.src = "image/nav_mission2.gif";
	target4on  = new Image(); target4on.src  = "image/nav_map2_over.gif";
	target4off = new Image(); target4off.src = "image/nav_map2.gif";
	target5on  = new Image(); target5on.src  = "image/nav_playerback_over.gif";
	target5off = new Image(); target5off.src = "image/nav_playerback.gif";	

}






function rollOn(img1,img2,text){
    window.status = text;
	if (document.images) {
		document[img1].src=eval(img1 + "on.src");
		document[img2].src=eval(img2 + "on.src");
    }
}

function rollOff(img1,img2){
    window.status = "";	
	if (document.images) {
		document[img1].src=eval(img1 + "off.src");
		document[img2].src=eval(img2 + "off.src");
    }
}




<!-- BEGIN PAYPAL JS      Hide JS source from HTML validators
function Dollar (val) {  // force to valid dollar amount
var str,pos,rnd=0;
  if (val < .995) rnd = 1;  // for old Netscape browsers
  str = escape (val*1.0 + 0.005001 + rnd);  // float, round, escape
  pos = str.indexOf (".");
  if (pos > 0) str = str.substring (rnd, pos + 3);
  return str;
}

function ReadForm (obj1) { // process un-named selects
var i,amt,des,obj,pos,val;
  amt = obj1.baseamt.value*1.0;       // base amount
  des = obj1.basedes.value;           // base description
  for (i=0; i<obj1.length; i++) {     // run entire form
    obj = obj1.elements[i];           // a form element
    if (obj.type == "select-one" &&   // just get selects
        obj.name == "") {             // must be un-named
      pos = obj.selectedIndex;        // which option selected
      val = obj.options[pos].value;   // selected value
      pos  = val.indexOf ("@");       // price set?
      if (pos >= 0) amt = val.substring (pos + 1)*1.0;
      pos  = val.indexOf ("+");       // price increment?
      if (pos >= 0) amt = amt + val.substring (pos + 1)*1.0;
      pos  = val.indexOf ("%");       // percent change?
      if (pos >= 0) amt = amt + (amt * val.substring (pos + 1)/100.0);
      if (des.length == 0) des = val;
      else des = des + ", " + val;    // accumulate value
    }
  }
  obj1.item_name.value = des;
  obj1.amount.value = Dollar (amt);
  if (obj1.tot) obj1.tot.value = "$" + Dollar (amt);
}





function doPreload()
{

   var the_images = new Array('image/nav_home.gif','image/nav_photo.gif','image/nav_photo2.gif','image/nav_sponsor2.gif',
   'image/nav_sponsor.gif', 'image/nav_map1.gif','image/nav_player_event.gif','image/nav_player_reg2.gif','image/nav_player_accom.gif');
   preloadImages(the_images);
}

function preloadImages(the_images_array) {

   for(var loop = 0; loop < the_images_array.length; loop++)
	
   {
 	var an_image = new Image();
	an_image.src = the_images_array[loop];
   }
}



/*
Script: CountDown Timer
*/

// Update display (strContent, countdownId)
function CD_UD(s, id) {
	CD_OBJS[id].innerHTML = s;
};

// Tick (countdownId, eventDate)
function CD_T(id, e) {
	var n	= new Date();
	var p	= 1E3 - n.getMilliseconds();
	setTimeout("CD_T('" + id + "', " + e + ")", p);
	CD_D(+n, id, e);
};

// Calculate time and invoke draw routine (dateNow, countdownId, eventDate)
function CD_D(n, id, e) {
	var ms = e - n;
	if (ms <= 0) ms *= -1;
	var d = Math.floor(ms / 864E5);
	ms -= d * 864E5;
	var h = Math.floor(ms / 36E5);
	ms -= h * 36E5;
	var m = Math.floor(ms / 6E4);
	ms -= m * 6E4;
	var s = Math.floor(ms / 1E3);
	CD_UD(d + " day" + (d == 1 ? " " : "s ") + CD_ZP(h) + "h " + CD_ZP(m) + "m " + CD_ZP(s) + "s", id);
};

// Prefix single integers with a zero
function CD_ZP(i) {
	return (i<10 ? "0" + i : i);
};

// Initialisation
function CD_Init() {
	var pref = "countdown";
	var objH = 1; // temp boolean true value
	if (document.getElementById || document.all) {
		for (var i=1; objH; ++i) {
			var id	= pref + i;
			objH	= document.getElementById ? document.getElementById(id) : document.all[id];

			if (objH && (typeof objH.innerHTML) != 'undefined') {
				var s	= objH.innerHTML;
				var dt	= new Date(s);
				if (!isNaN(dt)) {
					CD_OBJS[id] = objH; // Store global reference to countdown element object
					CD_T(id, dt.valueOf());
					if (objH.style) {
						objH.style.visibility = "visible";
					}
				}
				else {
					objH.innerHTML = s + "<a href=\"http://andrewu.co.uk/clj/countdown/\" title=\"Countdown Error: Invalid date format used, check documentation (see link)\">*</a>";
				}
			}
		}
	}
};

var CD_OBJS = new Object();

// Try not to commandeer the default onload handler if possible
if (window.attachEvent) {
	window.attachEvent('onload', CD_Init);
}
else if (window.addEventListener) {
	window.addEventListener("load", CD_Init, false);
}
else {
	window.onload = CD_Init;
}





function openwindow(theURL,width,height) {
    window.open(theURL,'winName','width=' + width + ',height=' + height + ',resizable=0,scrollbars=0,menubar=0,toolbar=0,location=0,directories=0,status=0');
}