// JavaScript Document

function OpenRow(rowName) {
hideElement("essential");
hideElement("events");
hideElement("drivers");
hideElement("media");

 if( document.getElementById(rowName).style.display=='none' ){
   document.getElementById(rowName).style.display = '';   
 }else{   
   document.getElementById(rowName).style.display = 'none';
 }
}

function hideElement (elementId) {
var element;
if (document.all)
element = document.all[elementId];
else if (document.getElementById)
element = document.getElementById(elementId);
if (element && element.style)
element.style.display = 'none';
}