if (document.images) {
    var speaker = new Image()    ; speaker.src = "../../speaker.jpg"
    var speakerhot = new Image() ; speakerhot.src = "../../speakerhot.jpg"
    var speakeron = new Image()  ; speakeron.src = "../../speakeron.jpg"
    var video = new Image()    ; video.src = "video.jpg"
    var videohot = new Image() ; videohot.src = "videohot.jpg"
    var videoOn = new Image()  ; videoOn.src = "video-on.jpg"
   var top = new Image()        ; top.src = "top.gif"
    var red = new Image()        ; red.src = "red.jpg"
    var black = new Image()      ; black.src = "black.jpg"
}

function flip(imgVar) {
var eSrc = window.event.srcElement;
if (document.images)
    eSrc.src = eval(imgVar);
return true;
}