if (document.images) {

var cold01 = new Image();
cold01.src = "../images/images_about/rt_nav/up_01.gif"
var cold02 = new Image();
cold02.src = "../images/images_about/rt_nav/up_02.gif"
var cold03 = new Image();
cold03.src = "../images/images_about/rt_nav/up_03.gif"
var cold04 = new Image();
cold04.src = "../images/images_about/rt_nav/up_04.gif"
var cold05 = new Image();
cold05.src = "../images/images_about/rt_nav/up_05.gif"
var cold06 = new Image();
cold06.src = "../images/images_about/rt_nav/up_06.gif"
var cold07 = new Image();
cold07.src = "../images/images_about/rt_nav/up_07.gif"
var cold08 = new Image();
cold08.src = "../images/images_about/rt_nav/up_08.gif"
var cold09 = new Image();
cold09.src = "../images/images_about/rt_nav/up_09.gif"



var hot01 = new Image();
hot01.src = "../images/images_about/rt_nav/over_01.gif"
var hot02 = new Image();
hot02.src = "../images/images_about/rt_nav/over_02.gif"
var hot03 = new Image();
hot03.src = "../images/images_about/rt_nav/over_03.gif"
var hot04 = new Image();
hot04.src = "../images/images_about/rt_nav/over_04.gif"
var hot05 = new Image();
hot05.src = "../images/images_about/rt_nav/over_05.gif"
var hot06 = new Image();
hot06.src = "../images/images_about/rt_nav/over_06.gif"
var hot07 = new Image();
hot07.src = "../images/images_about/rt_nav/over_07.gif"
var hot08 = new Image();
hot08.src = "../images/images_about/rt_nav/over_08.gif"
var hot09 = new Image();
hot09.src = "../images/images_about/rt_nav/over_09.gif"


}

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

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