function changeTrans() {
    obj = getControlObject("oSelect");
    selectedValue = obj.options[obj.selectedIndex].value;
    if (selectedValue != "empty") {
        if (selectedValue.indexOf('Barn')!=-1) {
            oControlsSpan.innerHTML = oBarnControls.innerHTML;
            barnTransChange();
        }
        else if (selectedValue.indexOf('Blinds')!=-1) {
            oControlsSpan.innerHTML = oBlindsControls.innerHTML;
            blindsTransChange();
        }
        else if (selectedValue.indexOf('Checkerboard')!=-1) {
            oControlsSpan.innerHTML = oCheckerboardControls.innerHTML;
            checkerboardTransChange();
        }
        else if (selectedValue.indexOf('Fade')!=-1) {
            oControlsSpan.innerHTML = oFadeControls.innerHTML;
            fadeTransChange();
        }
        else if (selectedValue.indexOf('Iris')!=-1) {
            oControlsSpan.innerHTML = oIrisControls.innerHTML;
            irisTransChange();
        }
        else if (selectedValue.indexOf('Pixelate')!=-1) {
            oControlsSpan.innerHTML = oPixelateTransControls.innerHTML;
            pixelateTransChange();
        }
        else if (selectedValue.indexOf('RadialWipe')!=-1) {
            oControlsSpan.innerHTML = oRadialWipeControls.innerHTML;
            radialWipeTransChange();
        }
        else if (selectedValue.indexOf('RandomBars')!=-1) {
            oControlsSpan.innerHTML = oRandomBarsControls.innerHTML;
            randomBarsTransChange();
        }
        else if (selectedValue.indexOf('Slide')!=-1) {
            oControlsSpan.innerHTML = oSlideControls.innerHTML;
            slideTransChange();
        }