if (document.images) {

var overcold = new Image();
overcold.src = "../images/nav_overview_2.gif"
var rescold = new Image();
rescold.src = "../images/images_workshop/rt_nav/nav_work_res_2.gif"
var howcold = new Image();
howcold.src = "../images/images_workshop/rt_nav/nav_work_how_2.gif"
var navsixcold = new Image();
navsixcold.src = "../images/images_workshop/rt_nav/nav_how_pro_step6_2.gif"
var navfivecold = new Image();
navfivecold.src = "../images/images_workshop/rt_nav/nav_how_pro_step5_2.gif"
var navfourcold = new Image();
navfourcold.src = "../images/images_workshop/rt_nav/nav_how_pro_step4_2.gif"
var navthrcold = new Image();
navthrcold.src = "../images/images_workshop/rt_nav/nav_how_pro_step3_2.gif"
var navtwocold = new Image();
navtwocold.src = "../images/images_workshop/rt_nav/nav_how_pro_step2_2.gif"
var navonecold = new Image();
navonecold.src = "../images/images_workshop/rt_nav/nav_how_pro_step1_2.gif"
var proccold = new Image();
proccold.src = "../images/images_workshop/rt_nav/nav_how_process_2.gif"
var faqcold = new Image();
faqcold.src = "../images/images_workshop/rt_nav/nav_how_faq_2.gif"
var impcold = new Image();
impcold.src = "../images/images_workshop/rt_nav/nav_how_bck_imp_2.gif"
var defcold = new Image();
defcold.src = "../images/images_workshop/rt_nav/nav_how_bck_def_2.gif"
var classcold = new Image();
classcold.src = "../images/images_workshop/rt_nav/nav_how_bck_class_2.gif"
var bgndcold = new Image();
bgndcold.src = "../images/images_workshop/rt_nav/nav_how_bckgrnd_2.gif"

var overhot = new Image();
overhot.src = "../images/images_workshop/rt_nav/nav_overview_pnk.gif"
var reshot = new Image();
reshot.src = "../images/images_workshop/rt_nav/nav_work_res_3.gif"
var howhot = new Image();
howhot.src = "../images/images_workshop/rt_nav/nav_work_how_3.gif"
var navsixhot = new Image();
navsixhot.src = "../images/images_workshop/rt_nav/nav_how_pro_step6_3.gif"
var navfivehot = new Image();
navfivehot.src = "../images/images_workshop/rt_nav/nav_how_pro_step5_3.gif"
var navfourhot = new Image();
navfourhot.src = "../images/images_workshop/rt_nav/nav_how_pro_step4_3.gif"
var navthrhot = new Image();
navthrhot.src = "../images/images_workshop/rt_nav/nav_how_pro_step3_3.gif"
var navtwohot = new Image();
navtwohot.src = "../images/images_workshop/rt_nav/nav_how_pro_step2_3.gif"
var navonehot = new Image();
navonehot.src = "../images/images_workshop/rt_nav/nav_how_pro_step1_3.gif"
var prochot = new Image();
prochot.src = "../images/images_workshop/rt_nav/nav_how_process_3.gif"
var faqhot = new Image();
faqhot.src = "../images/images_workshop/rt_nav/nav_how_faq_3.gif"
var imphot = new Image();
imphot.src = "../images/images_workshop/rt_nav/nav_how_bck_imp_3.gif"
var defhot = new Image();
defhot.src = "../images/images_workshop/rt_nav/nav_how_bck_def_3.gif"
var classhot = new Image();
classhot.src = "../images/images_workshop/rt_nav/nav_how_bck_class_3.gif"
var bgndhot = new Image();
bgndhot.src = "../images/images_workshop/rt_nav/nav_how_bckgrnd_3.gif"


}

 function hot(imgName) {
 
           if (document.images) 
            document.images[imgName].src = eval(imgName + 'hot.src');
          
          }

 function cold(imgName) {
          
           if (document.images)
            document.images[imgName].src = eval(imgName + 'cold.src');
          
          }