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[
<script type="text/javascript" language="javascript">

var checkConflict = function checkConflict(){
$('test').toggle();
}  

Event.observe(window,'load',function()
{
  Event.observe('element1', 'click', function(){ checkConflict();
  }); 
  Event.observe('element2', 'click', function(){ checkConflict();
  });
});

</script>
]