if (document.images) {
var home = new Image();home.src = 'images/buttons/b_home.gif';
var homeon = new Image();homeon.src = 'images/buttons/b_home_on.gif';
var aboutus = new Image();aboutus.src = 'images/buttons/b_aboutus.gif';
var aboutuson = new Image();aboutuson.src = 'images/buttons/b_aboutus_on.gif';
var paynow = new Image();paynow.src = 'images/buttons/b_paynow.gif';
var paynowon = new Image();paynowon.src = 'images/buttons/b_paynow_on.gif';
var map = new Image();map.src = 'images/buttons/b_map.gif';
var mapon = new Image();mapon.src = 'images/buttons/b_map_on.gif';
var apply = new Image();apply.src = 'images/buttons/b_apply.gif';
var applyon = new Image();applyon.src = 'images/buttons/b_apply_on.gif';
var bhome = new Image();bhome.src = 'images/buttons/bl_home.gif';
var bhomeon = new Image();bhomeon.src = 'images/buttons/bl_home_on.gif';
var baboutus = new Image();baboutus.src = 'images/buttons/bl_aboutus.gif';
var baboutuson = new Image();baboutuson.src = 'images/buttons/bl_aboutus_on.gif';
var bprivacy = new Image();bprivacy.src = 'images/buttons/bl_privacy.gif';
var bprivacyon = new Image();bprivacyon.src = 'images/buttons/bl_privacy_on.gif';
var bpaynow = new Image();bpaynow.src = 'images/buttons/bl_paynow.gif';
var bpaynowon = new Image();bpaynowon.src = 'images/buttons/bl_paynow_on.gif';
var bmap = new Image();bmap.src = 'images/buttons/bl_map.gif';
var bmapon = new Image();bmapon.src = 'images/buttons/bl_map_on.gif';
var bapply = new Image();bapply.src = 'images/buttons/bl_apply.gif';
var bapplyon = new Image();bapplyon.src = 'images/buttons/bl_apply_on.gif';
var bcontactus = new Image();bcontactus.src = 'images/buttons/bl_contactus.gif';
var bcontactuson = new Image();bcontactuson.src = 'images/buttons/bl_contactus_on.gif';
}
function ChangeImg(id,name){
  if (document.images) {document.images[id].src=eval(name+".src"); }
}