<!--

isIE = (document.all)? true : false;
isDOM = (document.getElementById)? true : false;

menuImages = new Array("home","about","contact","staff","careers","news","bioventures","development", "licensing","other");
over = new Array();
normal = new Array();

function preloadImages()
{

    for (var i = 0; i < menuImages.length; i++)
    {
        over[menuImages[i]] = new Image();
        over[menuImages[i]].src = "/resources/images/nav_" + menuImages[i] + "_on.gif";
        normal[menuImages[i]] = new Image();
        normal[menuImages[i]].src = "/resources/images/nav_" + menuImages[i] + "_off.gif";
    }
    
}  

function rollOver(imgName)
{
    if (document.images)
    {
        document.images[imgName].src = over[imgName].src;
    }    
}


function rollOut(imgName)
{
    if (document.images)
    {
        document.images[imgName].src = normal[imgName].src;
    }    
}   


//-->