/* Show or Hide Div Layer */
function plus(divID){
        var obj = document.getElementById(divID);
        obj.style.display = 'block';
}

function minus(divID){
        var obj = document.getElementById(divID);
        obj.style.display = 'none';
}

/* Show or Hide Table rows */ 
function plus(trID){
        var obj = document.getElementById(trID);
        obj.style.display = 'block';
}

function minus(trID){
        var obj = document.getElementById(trID);
        obj.style.display = 'none';
}