/* Preload any images here */

arImageSrc = new Array (
        "btn_about_norm.gif",
        "btn_alzheimers_norm.gif",
        "btn_companion_norm.gif",
        "btn_contact_norm.gif",
        "btn_employment_norm.gif",
        "btn_home_norm.gif",
        "btn_rn_norm.gif",
        "btn_wellness_norm.gif"
)

function preloadem(){
        arImageList = new Array ();
        sDirectory = "/images";

        for (counter in arImageSrc) {
                arImageList[counter] = new Image();
                arImageList[counter].src = sDirectory + arImageSrc[counter];
        }
}

/* This function does the actual image rollover */

function changeIt(oImage){
        var sSrc = oImage.src;
        var iUnderscore = sSrc.lastIndexOf("_");
        var iDot = sSrc.lastIndexOf(".");
        var sState = sSrc.slice(iUnderscore, iDot);
        var sNewImg = sSrc.slice(0, iUnderscore);
        var sExtension = sSrc.slice(iDot);
        if(sState == "_norm")
        {
                sNewImg = sNewImg + "_high" + sExtension;
                eval(oImage).src = sNewImg;
        }
        else
        {
                sNewImg = sNewImg + "_norm" + sExtension;
                eval(oImage).src = sNewImg;
        }

}