function show(ele) {
    var srcElement = document.getElementById(ele);
    if(srcElement != null) {
       srcElement.style.display='block';
    }
    return false;
 } 
 
function hide(ele) {
    var srcElement = document.getElementById(ele);
    if(srcElement != null) {
    if(srcElement.style.display == "block") {
       srcElement.style.display= 'none';
    }
   return false;
  }
 }