var colIds = new Array( 'col1', 'col2', 'col3' );
var colPad = new Array(      0,      0,     56 );

function balanceColumns()
{
  if( typeof( balanceColumns_oldLoad ) != "undefined" && balanceColumns_oldLoad != null )
  {
    balanceColumns_oldLoad();
    balanceColumns_oldLoad = null;
  }

  var maxHeight = 0;

  for( var i = 0 ; i < colIds.length ; i++ )
  {
    maxHeight = Math.max( maxHeight, $("#" + colIds[i]).height() + colPad[i] );
  }

  for( var i = 0 ; i < colIds.length ; i++ )
  {
    $("#" + colIds[i]).height( maxHeight - colPad[i] );
  }
}

var balanceColumns_oldLoad = window.onload;
window.onload = balanceColumns;