var preloadFlag = false;
//*****************************************************************************************************************
function newImage(arg) {
        if (document.images) {
                rslt = new Image();
                rslt.src = arg;
                return rslt;
        }
}
//*****************************************************************************************************************
function changeImages(name,img_src) 
{
 if (document.images && (preloadFlag == true)) 
         document.images[name].src = img_src;
 return;        
}

//*****************************************************************************************************************
function changeLrImages(lrName, imgName,img_src) 
{
//    alert(document.layers + " | " + document.images +  " | "+ (preloadFlag == true) ); 
 if (document.images ) 
    if (document.layers)
       document.layers[lrName].document.images[imgName].src = img_src;
    else
       document.images[imgName].src = img_src;
 return;        
}

//*****************************************************************************************************************
function preloadImages() 
{
 if (document.images && PageNumber == 15) 
    {
                map3_31_over = newImage("images/map3_10_over.jpg");
                map3_32_over = newImage("images/map3_14_over.jpg");
                map3_33_over = newImage("images/map3_17_over.jpg");
                map3_35_over = newImage("images/map3_21_over.jpg");
                map3_37_over = newImage("images/map3_24_over.jpg");
                map3_38_over = newImage("images/map3_27_over.jpg");
                map3_38_over = newImage("images/map3_29_over.jpg");
                map3_40_over = newImage("images/map3_31_over.jpg");
         preloadFlag = true;
        }
 return;        
}
//*****************************************************************************************************************