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<div id="test"></div>
<script type="text/JavaScript">
var _input;
var _test = document.getElementById('test');
_input = document.createElement('input');
	_input.type = 'text';
	_input.name = 'test[1]';
	_input.value = 'test1';
_test.appendChild(_input);
_input = document.createElement('input');
	_input.type = 'text';
	_input.name = 'test[2]';
	_input.id = 'test[2]';
	_input.value = 'test2';
_test.appendChild(_input);
try{
	alert(document.getElementsByName('test[1]')[0].value);
}catch(e){
	alert(e.toString());
}
alert(document.getElementsByName('test[2]')[0].value);
</script>