function AddMargin()
{

           var maxHeight = 0;
           
           if ( document.getElementById('L0').offsetHeight > maxHeight)
           {
                maxHeight = document.getElementById('L0').offsetHeight;
           }
           
           if (document.getElementById('L1') != null)
           {
               if ( document.getElementById('L1').offsetHeight > maxHeight)
               {
                    maxHeight = document.getElementById('L1').offsetHeight;
               }
           }
           
           if (document.getElementById('L2') != null)
           {
               if ( document.getElementById('L2').offsetHeight > maxHeight)
               {
                    maxHeight = document.getElementById('L2').offsetHeight;
               }
           }



}