if (document.images) {

var overcold = new Image();
overcold.src = "../images/images_programs/rt_nav/nav_overview_2.gif"
var actcold = new Image();
actcold.src = "../images/images_programs/rt_nav/nav_club_act_2.gif"
var sponcold = new Image();
sponcold.src = "../images/images_programs/rt_nav/nav_club_spon_2.gif"
var clubcold = new Image();

clubcold.src = "../images/images_programs/rt_nav/nav_club_inv_2.gif"



var overhot = new Image();
overhot.src = "../images/images_programs/rt_nav/nav_overview_3.gif"
var acthot = new Image();
acthot.src = "../images/images_programs/rt_nav/nav_club_act_3.gif"
var sponhot = new Image();
sponhot.src = "../images/images_programs/rt_nav/nav_club_spon_3.gif"
var clubhot = new Image();

clubhot.src = "../images/images_programs/rt_nav/nav_club_inv_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');
          
          }