// JScript File

function VisibilityControl(elementName, hiddenName){
    var oElement = document.getElementById(elementName);
    var oHidden = document.getElementById(hiddenName);
    if(oElement.className == "invisible"){
        oElement.className = "visible";
        oHidden.value = "visible";
    }
    else{
        oElement.className = "invisible";
        oHidden.value = "invisible";
    }
}