function ShowDiv(div_name)
{
  
  var divs = new Array();
  
  divs[0] = "security_div";
  divs[1] = "dc_div";
  divs[2] = "support_div";
  divs[3] = "pricing_div";
  
  var lis = new Array();
  
  lis[0] = "security_tab";
  lis[1] = "dc_tab";
  lis[2] = "support_tab";
  lis[3] = "pricing_tab";
  
  for (i=0;i<divs.length;i++)
  {
    var div = document.getElementById(divs[i]).style;
   
    if(divs[i] == div_name)
    {
      div.display = 'block';
      div.visibility = 'visible';
      document.getElementById(lis[i]).setAttribute("class", "tabSelected");
      document.getElementById(lis[i]).setAttribute("className", "tabSelected");
    } 
    else 
    {
      div.display = 'none';
      div.visibility = 'hidden';
      document.getElementById(lis[i]).setAttribute("class", "tabNotSelected");
      document.getElementById(lis[i]).setAttribute("className", "tabNotSelected");
    }
  }
}