function fnDisplay(ElementID){
for(i=1; i<13; i++){
if(i==ElementID){
document.getElementById("D"+i).style.display = "block";
document.getElementById("D"+i).style.Visiblity = "Visible";}
else{
document.getElementById("D"+i).style.display = "none";
document.getElementById("D"+i).style.Visiblity = "hidden";}
}
}