function toggleLayer(questionNum){
    if(document.getElementById("answer" + questionNum).style.display == "block"){
        document.getElementById("answer" + questionNum).style.display = "none";
        document.images["linkToggleAnswer" + questionNum].src = eval("linkViewAnswerOff").src;
    }else{
        document.getElementById("answer" + questionNum).style.display = "block";
        document.images["linkToggleAnswer" + questionNum].src = eval("linkHideAnswerOff").src;
    }
}

function rolloverToggle(imageNum,imageState){
    if(document.getElementById("answer" + imageNum).style.display == "block"){
        document.images["linkToggleAnswer" + imageNum].src = eval("linkHideAnswer" + imageState).src;
    }else{
        document.images["linkToggleAnswer" + imageNum].src = eval("linkViewAnswer" + imageState).src;
    }
}