var image1 = new Image();
image1.src = "images/search_on.gif";
var image2 = new Image();
image2.src = "images/nav-bar-home-on.jpg";
var image3 = new Image();
image3.src = "images/nav-bar-find-on.jpg";
var image4 = new Image();
image4.src = "images/nav-bar-locate-on.jpg";
var image5 = new Image();
image5.src = "images/nav-bar-spec-on.jpg";
var image6 = new Image();
image6.src = "images/nav-bar-cal-on.jpg";
var image7 = new Image();
image7.src = "images/nav-bar-online-on.jpg";
var image8 = new Image();
image8.src = "images/nav-bar-news-on.jpg";
var image9 = new Image();
image9.src = "images/nav-bar-about-on.jpg";

function writeIt(){
    document.write ("<img src='images/nav-bar-about-on.jpg' />");
}

function clearSearch() {
    document.forms['frmSearch'].elements['search'].value = "";
}

function restoreSearch() {
    if (document.forms['frmSearch'].elements['search'].value == ""){
        document.forms['frmSearch'].elements['search'].value = "Search FHN";
    }
}

function chgButton(oImg){
    var sSrc = oImg.src;
    var nPos = sSrc.lastIndexOf("-");
    
    if (nPos > 0){
        var sImgSuffix = sSrc.substr(nPos, sSrc.length);
        var sSrcBase = sSrc.substr(0, nPos);
        if (sImgSuffix == "-off.jpg"){
            oImg.src = sSrcBase + "-on.jpg";
            return(true);
        }else if (sImgSuffix == "-on.jpg") {
            oImg.src = sSrcBase + "-off.jpg";
            return(true);
        }
    }
}

function btnHigh(sID){
    if (nCurrBtnID != sID){
        document.getElementById("teaserBtn" + sID).style.background = aBtnColors[sID - 1];
    }
}

function btnLow(sID){
    if (nCurrBtnID != sID){
        document.getElementById("teaserBtn" + sID).style.background = "url(images/btn-" + sID + "-bdr.jpg) " + aBtnColors[sID - 1];
    }
}

function btnHandler(sID){
    if (nCurrBtnID != sID){
        for (i = 1; i < 4; i++){
            if (i == sID){
                document.getElementById("teaserBtn" + i).style.background = aBtnColors[i - 1];
                document.getElementById("teaserBtn" + i).style.cursor = "default";
                document.getElementById("teaserAnch" + i).style.zIndex = 10;
            }else {
                document.getElementById("teaserBtn" + i).style.background = "url(images/btn-" + i + "-bdr.jpg)";
                document.getElementById("teaserBtn" + i).style.cursor = "pointer";
                document.getElementById("teaserAnch" + i).style.zIndex = 5;
            }
        }
        nCurrBtnID = sID;
    }
}

// Similar functions as above for interior pages where the colors and graphics 
// aren't known in advance
function mOverTeaser(sID, sBkgdColor){
    document.getElementById(sID).style.background = sBkgdColor;
}

function mOutTeaser(sID, sBkgdImg){
    document.getElementById(sID).style.background = "url(images/" + sBkgdImg + ")";
}